MCQ
In electromagnetic induction, the induced e.m.f. in a coil is independent of
- AChange in the flux
- BTime
- ✓Resistance of the circuit
- DNone of the above
✓
Answer
Correct option: C.
Resistance of the circuit
(c) Because induced e.m.f. is given by $E=-N \frac{d \phi}{d t}$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A conducting rod $P Q$ of length $L=1.0 \mathrm{~m}$ is moving with a uniform speed $v=2 \mathrm{~m} / \mathrm{s}$ in a uniform magnetic field $B=4.0 \mathrm{~T}$ directed into the paper. A capacitor of capacity $C=10 \mu F$ is connected as shown in figure. Then
→A block is lying on an inclined plane which makes $60^{\circ}$ with the horizontal. If coefficient of friction between block and plane is $0.25$ and $g=10 \mathrm{~m} / \mathrm{s}^2$, then acceleration of the block when it moves along the plane will be
→The horizontal component of the earth's magnetic field is $0.22$ Gauss and total magnetic field is $0.4$ Gauss. The angle of dip. is
→When a spring is stretched by $2 \mathrm{~cm}$, it stores $100 \mathrm{~J}$ of energy. If it is stretched further by $2 \mathrm{~cm}$, the stored energy will be increased by
→Which of the following graphs represents the motion of a planet moving about the sun
A current carrying wire of length $L$ is transformed into a coil of $N$ turns. To achieve maximum magnetic moment, the coil
→To make the frequency double of a spring oscillator, we have to
The specific heat of a gas in an isothermal process is
Band spectrum is produced by
The thermo e.m.f. of a thermocouple veries $\theta$ of the hot junction as $E=a \theta+b \theta^2$ in volts where the ratio $a / b$ is $700^{\circ} C$. If the cold junction is kept at $0^{\circ} C$, then the neutral temperature is
→