155013
A magnet makes a single pass through a coil. Then across the ends of the coil it produces
1 d.c. voltage
2 sinusoidal voltage
3 single voltage pulse
4 two voltage pulses
Explanation:
D As the figure shown above. The front face of the coil facing the North pole will behave as North pole that means anti - clockwise current flows in the coil. When the coil moves away, the face in front of South pole of the magnet behaves as North that means clockwise current flows in the coil. So, if a magnet makes a single pass through a coil, then across the ends of the coil it produces two voltage pulses.
J and K CET-2015
Alternating Current
155015
The peak value of alternating current is $5 \sqrt{2}$ ampere. The mean square value of current will be
1 $5 \mathrm{~A}$
2 $2.5 \mathrm{~A}$
3 $5 \sqrt{2} \mathrm{~A}$
4 None of the above
Explanation:
A Given, Peak value ofcurrent, $\mathrm{I}_{0}=5 \sqrt{2}$ So, $\quad \mathrm{I}_{\mathrm{rms}}=\frac{\mathrm{I}_{0}}{\sqrt{2}}=\frac{5 \sqrt{2}}{\sqrt{2}}, \quad \mathrm{I}_{\mathrm{rms}}=5 \mathrm{~A}$
JIPMER-2004
Alternating Current
154957
The INCORRECT statement is
1 The direction of eddy currents is given by Lenz' law
2 A choke coil is a pure inductor used for controlling current in an A.C. circuit
3 The r.m.s. value of A.C. current is $\sqrt{2}$ times the peak value of A.C. current
4 Quality factor is a measure of sharpness of resonance in A.C. circuit
5 Magnetic field energy stored in an inductor of inductance $\mathrm{L}$ is $\frac{1}{2} \mathrm{LI}^{2}$
Explanation:
C The r.m.s value of AC current is $\frac{1}{\sqrt{2}}$ time of the peak value of A.C current not $\sqrt{2}$ times of the peak value of $\mathrm{AC}$ current
Kerala CEE 04.07.2022
Alternating Current
154966
Van De graff generator is used to
1 Create a high potential of range of few million volts
2 Create a low potential of range of few million volts
3 To de-accelerate projectile; like protons, deuterons etc.
4 It cannot be used to study collision experiments in physics
Explanation:
A Van de Graff Generator is defined as a device which produce very high voltage by means of an endless belt collecting electrostatic charge from a source and transferring it to a large isolated metal sphere on which a large charge accumulates.
155013
A magnet makes a single pass through a coil. Then across the ends of the coil it produces
1 d.c. voltage
2 sinusoidal voltage
3 single voltage pulse
4 two voltage pulses
Explanation:
D As the figure shown above. The front face of the coil facing the North pole will behave as North pole that means anti - clockwise current flows in the coil. When the coil moves away, the face in front of South pole of the magnet behaves as North that means clockwise current flows in the coil. So, if a magnet makes a single pass through a coil, then across the ends of the coil it produces two voltage pulses.
J and K CET-2015
Alternating Current
155015
The peak value of alternating current is $5 \sqrt{2}$ ampere. The mean square value of current will be
1 $5 \mathrm{~A}$
2 $2.5 \mathrm{~A}$
3 $5 \sqrt{2} \mathrm{~A}$
4 None of the above
Explanation:
A Given, Peak value ofcurrent, $\mathrm{I}_{0}=5 \sqrt{2}$ So, $\quad \mathrm{I}_{\mathrm{rms}}=\frac{\mathrm{I}_{0}}{\sqrt{2}}=\frac{5 \sqrt{2}}{\sqrt{2}}, \quad \mathrm{I}_{\mathrm{rms}}=5 \mathrm{~A}$
JIPMER-2004
Alternating Current
154957
The INCORRECT statement is
1 The direction of eddy currents is given by Lenz' law
2 A choke coil is a pure inductor used for controlling current in an A.C. circuit
3 The r.m.s. value of A.C. current is $\sqrt{2}$ times the peak value of A.C. current
4 Quality factor is a measure of sharpness of resonance in A.C. circuit
5 Magnetic field energy stored in an inductor of inductance $\mathrm{L}$ is $\frac{1}{2} \mathrm{LI}^{2}$
Explanation:
C The r.m.s value of AC current is $\frac{1}{\sqrt{2}}$ time of the peak value of A.C current not $\sqrt{2}$ times of the peak value of $\mathrm{AC}$ current
Kerala CEE 04.07.2022
Alternating Current
154966
Van De graff generator is used to
1 Create a high potential of range of few million volts
2 Create a low potential of range of few million volts
3 To de-accelerate projectile; like protons, deuterons etc.
4 It cannot be used to study collision experiments in physics
Explanation:
A Van de Graff Generator is defined as a device which produce very high voltage by means of an endless belt collecting electrostatic charge from a source and transferring it to a large isolated metal sphere on which a large charge accumulates.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Alternating Current
155013
A magnet makes a single pass through a coil. Then across the ends of the coil it produces
1 d.c. voltage
2 sinusoidal voltage
3 single voltage pulse
4 two voltage pulses
Explanation:
D As the figure shown above. The front face of the coil facing the North pole will behave as North pole that means anti - clockwise current flows in the coil. When the coil moves away, the face in front of South pole of the magnet behaves as North that means clockwise current flows in the coil. So, if a magnet makes a single pass through a coil, then across the ends of the coil it produces two voltage pulses.
J and K CET-2015
Alternating Current
155015
The peak value of alternating current is $5 \sqrt{2}$ ampere. The mean square value of current will be
1 $5 \mathrm{~A}$
2 $2.5 \mathrm{~A}$
3 $5 \sqrt{2} \mathrm{~A}$
4 None of the above
Explanation:
A Given, Peak value ofcurrent, $\mathrm{I}_{0}=5 \sqrt{2}$ So, $\quad \mathrm{I}_{\mathrm{rms}}=\frac{\mathrm{I}_{0}}{\sqrt{2}}=\frac{5 \sqrt{2}}{\sqrt{2}}, \quad \mathrm{I}_{\mathrm{rms}}=5 \mathrm{~A}$
JIPMER-2004
Alternating Current
154957
The INCORRECT statement is
1 The direction of eddy currents is given by Lenz' law
2 A choke coil is a pure inductor used for controlling current in an A.C. circuit
3 The r.m.s. value of A.C. current is $\sqrt{2}$ times the peak value of A.C. current
4 Quality factor is a measure of sharpness of resonance in A.C. circuit
5 Magnetic field energy stored in an inductor of inductance $\mathrm{L}$ is $\frac{1}{2} \mathrm{LI}^{2}$
Explanation:
C The r.m.s value of AC current is $\frac{1}{\sqrt{2}}$ time of the peak value of A.C current not $\sqrt{2}$ times of the peak value of $\mathrm{AC}$ current
Kerala CEE 04.07.2022
Alternating Current
154966
Van De graff generator is used to
1 Create a high potential of range of few million volts
2 Create a low potential of range of few million volts
3 To de-accelerate projectile; like protons, deuterons etc.
4 It cannot be used to study collision experiments in physics
Explanation:
A Van de Graff Generator is defined as a device which produce very high voltage by means of an endless belt collecting electrostatic charge from a source and transferring it to a large isolated metal sphere on which a large charge accumulates.
155013
A magnet makes a single pass through a coil. Then across the ends of the coil it produces
1 d.c. voltage
2 sinusoidal voltage
3 single voltage pulse
4 two voltage pulses
Explanation:
D As the figure shown above. The front face of the coil facing the North pole will behave as North pole that means anti - clockwise current flows in the coil. When the coil moves away, the face in front of South pole of the magnet behaves as North that means clockwise current flows in the coil. So, if a magnet makes a single pass through a coil, then across the ends of the coil it produces two voltage pulses.
J and K CET-2015
Alternating Current
155015
The peak value of alternating current is $5 \sqrt{2}$ ampere. The mean square value of current will be
1 $5 \mathrm{~A}$
2 $2.5 \mathrm{~A}$
3 $5 \sqrt{2} \mathrm{~A}$
4 None of the above
Explanation:
A Given, Peak value ofcurrent, $\mathrm{I}_{0}=5 \sqrt{2}$ So, $\quad \mathrm{I}_{\mathrm{rms}}=\frac{\mathrm{I}_{0}}{\sqrt{2}}=\frac{5 \sqrt{2}}{\sqrt{2}}, \quad \mathrm{I}_{\mathrm{rms}}=5 \mathrm{~A}$
JIPMER-2004
Alternating Current
154957
The INCORRECT statement is
1 The direction of eddy currents is given by Lenz' law
2 A choke coil is a pure inductor used for controlling current in an A.C. circuit
3 The r.m.s. value of A.C. current is $\sqrt{2}$ times the peak value of A.C. current
4 Quality factor is a measure of sharpness of resonance in A.C. circuit
5 Magnetic field energy stored in an inductor of inductance $\mathrm{L}$ is $\frac{1}{2} \mathrm{LI}^{2}$
Explanation:
C The r.m.s value of AC current is $\frac{1}{\sqrt{2}}$ time of the peak value of A.C current not $\sqrt{2}$ times of the peak value of $\mathrm{AC}$ current
Kerala CEE 04.07.2022
Alternating Current
154966
Van De graff generator is used to
1 Create a high potential of range of few million volts
2 Create a low potential of range of few million volts
3 To de-accelerate projectile; like protons, deuterons etc.
4 It cannot be used to study collision experiments in physics
Explanation:
A Van de Graff Generator is defined as a device which produce very high voltage by means of an endless belt collecting electrostatic charge from a source and transferring it to a large isolated metal sphere on which a large charge accumulates.
