>
Exams
>
Physics
>
Electromagnetic induction
>
a changing current in a coil can induce an emf in
Question:
A changing current in a coil can induce an emf in a nearby coil. This process is:
Show Hint
Mutual induction occurs when a changing current in one coil induces an emf in a nearby coil.
AP EAPCET - 2023
AP EAPCET
Updated On:
May 14, 2025
self-induction
eddy currents
mutual induction
emf
Hide Solution
Verified By Collegedunia
The Correct Option is
C
Solution and Explanation
The process of a changing current in a coil inducing an emf in a nearby coil is called mutual induction.
Thus, the correct answer is mutual induction.
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Electromagnetic induction
You are required to design an air-filled solenoid of inductance 0.016 H having a length 0.81 m and radius 0.02 m. The number of turns in the solenoid should be:
CBSE CLASS XII - 2025
Physics
Electromagnetic induction
View Solution
A rectangular metallic loop is moving out of a uniform magnetic field region to a field-free region with a constant speed. When the loop is partially inside the magnetic field, the plot of the magnitude of the induced emf \( (\varepsilon) \) with time \( (t) \) is given by:
\includegraphics[width=1\linewidth]{3.png}
JEE Main - 2025
Physics
Electromagnetic induction
View Solution
A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field \( B \) exists into the page. The bar starts to move from the vertex at time \( t = 0 \) with a constant velocity. If the induced EMF is \( E \propto t^n \), then the value of \( n \) is ________________________.
JEE Main - 2025
Physics
Electromagnetic induction
View Solution
Consider two long co-axial solenoids \( S_1 \) and \( S_2 \), each of length \( l \) (\( l \gg r_2 \)) and radius \( r_1 \) and \( r_2 \) (\( r_2>r_1 \)). The number of turns per unit length are \( n_1 \) and \( n_2 \), respectively. Derive an expression for mutual inductance \( M_{12} \) of solenoid \( S_1 \) with respect to solenoid \( S_2 \). Show that \( M_{21} = M_{12} \).
CBSE CLASS XII - 2025
Physics
Electromagnetic induction
View Solution
The ratio of the number of turns of the primary to the secondary coils in an ideal transformer is 20:1. If 240 V AC is applied from a source to the primary coil of the transformer and a 6.0 \( \Omega \) resistor is connected across the output terminals, then the current drawn by the transformer from the source will be:
CBSE CLASS XII - 2025
Physics
Electromagnetic induction
View Solution
View More Questions
Questions Asked in AP EAPCET exam
If the de Broglie wavelength of an electron is \( 2 \, \text{nm} \), then its kinetic energy is nearly (Planck's constant \( = 6.6 \times 10^{-34} \, \text{J s} \) and mass of electron \( = 9 \times 10^{-31} \, \text{kg} \))
AP EAPCET - 2025
Dual nature of matter
View Solution
As shown in the figure, a force $F$ is applied on a block of mass $\frac{\sqrt{3}}{2}$ kg placed on a rough horizontal surface. The maximum value of $F$ for the block not to move is (coefficient of static friction between the block and the surface is $\frac{1}{2\sqrt{3}}$ and acceleration due to gravity = 10 m s$^{-2}$)
Identify the correct option from the following:
AP EAPCET - 2025
Friction
View Solution
A body of mass $5~\text{kg}$ starts from the origin with an initial velocity $\vec{v}_0 = (30\hat{i} + 40\hat{j})~\text{m/s}$.
If a constant force $\vec{F} = -(i + 5j)~\text{N}$ acts on the body, then the time in which the y-component of its velocity becomes zero is
AP EAPCET - 2025
Friction
View Solution
A block of mass 2 kg is placed on a rough inclined plane at 30° to the horizontal. The coefficient of static friction is 0.4. Will the block slide down?
AP EAPCET - 2025
Friction
View Solution
A block of mass $10~\text{kg}$ moving with a speed of $5~\text{m/s}$ on a frictionless horizontal surface suddenly explodes into two pieces.
If one piece with mass $4~\text{kg}$ moves with a speed of $10~\text{m/s}$, then the velocity of the second piece is
AP EAPCET - 2025
Friction
View Solution
View More Questions