165635
A spherical capacitor consists of two concentric spherical conductors. Find the capacitance of the spherical capacitor if the outer radius is $2 R$ and the inner radius is $R$.
165679
A parallel plate condenser is charged and disconnected from the battery. If the plates of the capacitor are moved further apart by means of insulating handles
1 the charge in the capacitor becomes zero
2 the capacitance becomes infinite
3 the charge in the capacitor increases
4 the voltage across the plates increases
Explanation:
: When the capacitor is charged and then disconnected, the charge across the plates remain a constant even when the plates are separated and when plates are separated the distance between the plates $\mathrm{d}$ increases and hence the capacitance decreases. Hence from, $\mathrm{Q}=\mathrm{CV}$, The voltage across the capacitor increases to maintain the charge constant.
[EAMCET-1996
Capacitance
165637
A bulb and capacitor are connected in series to a source of alternating current. If frequency is increased, while keeping the voltage of the source constant, then
1 Bulb will give more intense light
2 Bulb will give less intense light
3 Bulb will give light of same intensity as before
4 Bulb light will fluctuate
Explanation:
: When a bulb and a capacitor are connected in series to an AC source, then on increasing the frequency, the current in the circuit is increased, because the impedance of the circuit is decreased. So, the bulb will give more intense light.
[TS EAMCET 30.07.2022
Capacitance
165650
A parallel plate capacitor is charged by connecting a $2 \mathrm{~V}$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?
1 Energy stored and capacitance
2 Capacitance and charge
3 Charge and potential difference
4 Potential difference and energy stored
Explanation:
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stored decreases.
[Karnataka CET-2022]
Capacitance
165652
If combining two charged bodies, the current does not flow then
1 charge is equal on both
2 capacitance is equal on both
3 potential is equal on both
4 resistance is equal on both
Explanation:
: The current means the charge will flow from one region to other region due to the potential difference between two regions so if the potential is equal on both, the current will not flow.
165635
A spherical capacitor consists of two concentric spherical conductors. Find the capacitance of the spherical capacitor if the outer radius is $2 R$ and the inner radius is $R$.
165679
A parallel plate condenser is charged and disconnected from the battery. If the plates of the capacitor are moved further apart by means of insulating handles
1 the charge in the capacitor becomes zero
2 the capacitance becomes infinite
3 the charge in the capacitor increases
4 the voltage across the plates increases
Explanation:
: When the capacitor is charged and then disconnected, the charge across the plates remain a constant even when the plates are separated and when plates are separated the distance between the plates $\mathrm{d}$ increases and hence the capacitance decreases. Hence from, $\mathrm{Q}=\mathrm{CV}$, The voltage across the capacitor increases to maintain the charge constant.
[EAMCET-1996
Capacitance
165637
A bulb and capacitor are connected in series to a source of alternating current. If frequency is increased, while keeping the voltage of the source constant, then
1 Bulb will give more intense light
2 Bulb will give less intense light
3 Bulb will give light of same intensity as before
4 Bulb light will fluctuate
Explanation:
: When a bulb and a capacitor are connected in series to an AC source, then on increasing the frequency, the current in the circuit is increased, because the impedance of the circuit is decreased. So, the bulb will give more intense light.
[TS EAMCET 30.07.2022
Capacitance
165650
A parallel plate capacitor is charged by connecting a $2 \mathrm{~V}$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?
1 Energy stored and capacitance
2 Capacitance and charge
3 Charge and potential difference
4 Potential difference and energy stored
Explanation:
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stored decreases.
[Karnataka CET-2022]
Capacitance
165652
If combining two charged bodies, the current does not flow then
1 charge is equal on both
2 capacitance is equal on both
3 potential is equal on both
4 resistance is equal on both
Explanation:
: The current means the charge will flow from one region to other region due to the potential difference between two regions so if the potential is equal on both, the current will not flow.
165635
A spherical capacitor consists of two concentric spherical conductors. Find the capacitance of the spherical capacitor if the outer radius is $2 R$ and the inner radius is $R$.
165679
A parallel plate condenser is charged and disconnected from the battery. If the plates of the capacitor are moved further apart by means of insulating handles
1 the charge in the capacitor becomes zero
2 the capacitance becomes infinite
3 the charge in the capacitor increases
4 the voltage across the plates increases
Explanation:
: When the capacitor is charged and then disconnected, the charge across the plates remain a constant even when the plates are separated and when plates are separated the distance between the plates $\mathrm{d}$ increases and hence the capacitance decreases. Hence from, $\mathrm{Q}=\mathrm{CV}$, The voltage across the capacitor increases to maintain the charge constant.
[EAMCET-1996
Capacitance
165637
A bulb and capacitor are connected in series to a source of alternating current. If frequency is increased, while keeping the voltage of the source constant, then
1 Bulb will give more intense light
2 Bulb will give less intense light
3 Bulb will give light of same intensity as before
4 Bulb light will fluctuate
Explanation:
: When a bulb and a capacitor are connected in series to an AC source, then on increasing the frequency, the current in the circuit is increased, because the impedance of the circuit is decreased. So, the bulb will give more intense light.
[TS EAMCET 30.07.2022
Capacitance
165650
A parallel plate capacitor is charged by connecting a $2 \mathrm{~V}$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?
1 Energy stored and capacitance
2 Capacitance and charge
3 Charge and potential difference
4 Potential difference and energy stored
Explanation:
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stored decreases.
[Karnataka CET-2022]
Capacitance
165652
If combining two charged bodies, the current does not flow then
1 charge is equal on both
2 capacitance is equal on both
3 potential is equal on both
4 resistance is equal on both
Explanation:
: The current means the charge will flow from one region to other region due to the potential difference between two regions so if the potential is equal on both, the current will not flow.
165635
A spherical capacitor consists of two concentric spherical conductors. Find the capacitance of the spherical capacitor if the outer radius is $2 R$ and the inner radius is $R$.
165679
A parallel plate condenser is charged and disconnected from the battery. If the plates of the capacitor are moved further apart by means of insulating handles
1 the charge in the capacitor becomes zero
2 the capacitance becomes infinite
3 the charge in the capacitor increases
4 the voltage across the plates increases
Explanation:
: When the capacitor is charged and then disconnected, the charge across the plates remain a constant even when the plates are separated and when plates are separated the distance between the plates $\mathrm{d}$ increases and hence the capacitance decreases. Hence from, $\mathrm{Q}=\mathrm{CV}$, The voltage across the capacitor increases to maintain the charge constant.
[EAMCET-1996
Capacitance
165637
A bulb and capacitor are connected in series to a source of alternating current. If frequency is increased, while keeping the voltage of the source constant, then
1 Bulb will give more intense light
2 Bulb will give less intense light
3 Bulb will give light of same intensity as before
4 Bulb light will fluctuate
Explanation:
: When a bulb and a capacitor are connected in series to an AC source, then on increasing the frequency, the current in the circuit is increased, because the impedance of the circuit is decreased. So, the bulb will give more intense light.
[TS EAMCET 30.07.2022
Capacitance
165650
A parallel plate capacitor is charged by connecting a $2 \mathrm{~V}$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?
1 Energy stored and capacitance
2 Capacitance and charge
3 Charge and potential difference
4 Potential difference and energy stored
Explanation:
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stored decreases.
[Karnataka CET-2022]
Capacitance
165652
If combining two charged bodies, the current does not flow then
1 charge is equal on both
2 capacitance is equal on both
3 potential is equal on both
4 resistance is equal on both
Explanation:
: The current means the charge will flow from one region to other region due to the potential difference between two regions so if the potential is equal on both, the current will not flow.
165635
A spherical capacitor consists of two concentric spherical conductors. Find the capacitance of the spherical capacitor if the outer radius is $2 R$ and the inner radius is $R$.
165679
A parallel plate condenser is charged and disconnected from the battery. If the plates of the capacitor are moved further apart by means of insulating handles
1 the charge in the capacitor becomes zero
2 the capacitance becomes infinite
3 the charge in the capacitor increases
4 the voltage across the plates increases
Explanation:
: When the capacitor is charged and then disconnected, the charge across the plates remain a constant even when the plates are separated and when plates are separated the distance between the plates $\mathrm{d}$ increases and hence the capacitance decreases. Hence from, $\mathrm{Q}=\mathrm{CV}$, The voltage across the capacitor increases to maintain the charge constant.
[EAMCET-1996
Capacitance
165637
A bulb and capacitor are connected in series to a source of alternating current. If frequency is increased, while keeping the voltage of the source constant, then
1 Bulb will give more intense light
2 Bulb will give less intense light
3 Bulb will give light of same intensity as before
4 Bulb light will fluctuate
Explanation:
: When a bulb and a capacitor are connected in series to an AC source, then on increasing the frequency, the current in the circuit is increased, because the impedance of the circuit is decreased. So, the bulb will give more intense light.
[TS EAMCET 30.07.2022
Capacitance
165650
A parallel plate capacitor is charged by connecting a $2 \mathrm{~V}$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?
1 Energy stored and capacitance
2 Capacitance and charge
3 Charge and potential difference
4 Potential difference and energy stored
Explanation:
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stored decreases.
[Karnataka CET-2022]
Capacitance
165652
If combining two charged bodies, the current does not flow then
1 charge is equal on both
2 capacitance is equal on both
3 potential is equal on both
4 resistance is equal on both
Explanation:
: The current means the charge will flow from one region to other region due to the potential difference between two regions so if the potential is equal on both, the current will not flow.
