154969
In the series LCR circuit, the power dissipation is through
1 $\mathrm{R}$
2 $\mathrm{L}$
3 $\mathrm{C}$
4 both $\mathrm{L}$ and $\mathrm{C}$
Explanation:
A The resistance opposes the flow of electric current. So, the resistance of any circuit dissipates the power. The capacitor and inductor are the storage devices that store the energy in it. The inductor and capacitor can't dissipate energy
Karnataka CET-2018
Alternating Current
154976
An A.C. source is connected to a resistive circuit. which of the following is true?
1 Current leads ahead of voltage in phase
2 Current lags behind voltage in phase
3 Current and voltage are in same phase
4 Any of the above may be true depending upon the value of resistance
Explanation:
C When resistance is connected to AC source, then current and voltage are in same phase. In a pure ohmic-AC resistance, the current and voltage are both in same phase as there is no phase difference between them.
VITEEE-2017
Alternating Current
155000
The mean or average value of $\mathrm{AC}$ over a complete cycle is
1 100
2 0
3 50
4 Infinity
Explanation:
B The mean or average value of alternating current over a full cycle is always zero.
COMEDK 2015
Alternating Current
155009
The rms value of current in a $50 \mathrm{~Hz} \mathrm{AC}$ circuit is $6 \mathrm{~A}$. The average value of $\mathrm{AC}$ current over a cycle is
1 $6 \sqrt{2}$
2 $\frac{3}{\pi \sqrt{2}}$
3 Zero
4 $\frac{6}{\pi \sqrt{2}}$
Explanation:
C Average value of AC current over a cycle is zero.
154969
In the series LCR circuit, the power dissipation is through
1 $\mathrm{R}$
2 $\mathrm{L}$
3 $\mathrm{C}$
4 both $\mathrm{L}$ and $\mathrm{C}$
Explanation:
A The resistance opposes the flow of electric current. So, the resistance of any circuit dissipates the power. The capacitor and inductor are the storage devices that store the energy in it. The inductor and capacitor can't dissipate energy
Karnataka CET-2018
Alternating Current
154976
An A.C. source is connected to a resistive circuit. which of the following is true?
1 Current leads ahead of voltage in phase
2 Current lags behind voltage in phase
3 Current and voltage are in same phase
4 Any of the above may be true depending upon the value of resistance
Explanation:
C When resistance is connected to AC source, then current and voltage are in same phase. In a pure ohmic-AC resistance, the current and voltage are both in same phase as there is no phase difference between them.
VITEEE-2017
Alternating Current
155000
The mean or average value of $\mathrm{AC}$ over a complete cycle is
1 100
2 0
3 50
4 Infinity
Explanation:
B The mean or average value of alternating current over a full cycle is always zero.
COMEDK 2015
Alternating Current
155009
The rms value of current in a $50 \mathrm{~Hz} \mathrm{AC}$ circuit is $6 \mathrm{~A}$. The average value of $\mathrm{AC}$ current over a cycle is
1 $6 \sqrt{2}$
2 $\frac{3}{\pi \sqrt{2}}$
3 Zero
4 $\frac{6}{\pi \sqrt{2}}$
Explanation:
C Average value of AC current over a cycle is zero.
154969
In the series LCR circuit, the power dissipation is through
1 $\mathrm{R}$
2 $\mathrm{L}$
3 $\mathrm{C}$
4 both $\mathrm{L}$ and $\mathrm{C}$
Explanation:
A The resistance opposes the flow of electric current. So, the resistance of any circuit dissipates the power. The capacitor and inductor are the storage devices that store the energy in it. The inductor and capacitor can't dissipate energy
Karnataka CET-2018
Alternating Current
154976
An A.C. source is connected to a resistive circuit. which of the following is true?
1 Current leads ahead of voltage in phase
2 Current lags behind voltage in phase
3 Current and voltage are in same phase
4 Any of the above may be true depending upon the value of resistance
Explanation:
C When resistance is connected to AC source, then current and voltage are in same phase. In a pure ohmic-AC resistance, the current and voltage are both in same phase as there is no phase difference between them.
VITEEE-2017
Alternating Current
155000
The mean or average value of $\mathrm{AC}$ over a complete cycle is
1 100
2 0
3 50
4 Infinity
Explanation:
B The mean or average value of alternating current over a full cycle is always zero.
COMEDK 2015
Alternating Current
155009
The rms value of current in a $50 \mathrm{~Hz} \mathrm{AC}$ circuit is $6 \mathrm{~A}$. The average value of $\mathrm{AC}$ current over a cycle is
1 $6 \sqrt{2}$
2 $\frac{3}{\pi \sqrt{2}}$
3 Zero
4 $\frac{6}{\pi \sqrt{2}}$
Explanation:
C Average value of AC current over a cycle is zero.
154969
In the series LCR circuit, the power dissipation is through
1 $\mathrm{R}$
2 $\mathrm{L}$
3 $\mathrm{C}$
4 both $\mathrm{L}$ and $\mathrm{C}$
Explanation:
A The resistance opposes the flow of electric current. So, the resistance of any circuit dissipates the power. The capacitor and inductor are the storage devices that store the energy in it. The inductor and capacitor can't dissipate energy
Karnataka CET-2018
Alternating Current
154976
An A.C. source is connected to a resistive circuit. which of the following is true?
1 Current leads ahead of voltage in phase
2 Current lags behind voltage in phase
3 Current and voltage are in same phase
4 Any of the above may be true depending upon the value of resistance
Explanation:
C When resistance is connected to AC source, then current and voltage are in same phase. In a pure ohmic-AC resistance, the current and voltage are both in same phase as there is no phase difference between them.
VITEEE-2017
Alternating Current
155000
The mean or average value of $\mathrm{AC}$ over a complete cycle is
1 100
2 0
3 50
4 Infinity
Explanation:
B The mean or average value of alternating current over a full cycle is always zero.
COMEDK 2015
Alternating Current
155009
The rms value of current in a $50 \mathrm{~Hz} \mathrm{AC}$ circuit is $6 \mathrm{~A}$. The average value of $\mathrm{AC}$ current over a cycle is
1 $6 \sqrt{2}$
2 $\frac{3}{\pi \sqrt{2}}$
3 Zero
4 $\frac{6}{\pi \sqrt{2}}$
Explanation:
C Average value of AC current over a cycle is zero.
