Choke coil works on the principle of 

Important Questions on Electromagnetic Induction

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 206

The unit of inductance is

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 207

An $\mathrm{e}.\mathrm{m}.\mathrm{f}.$ of $5 \mathrm{V}$ is produced by a self-inductance when the current changes at a steady rate from $3 \mathrm{A}$to $2 \mathrm{A}$ in $1 \mathrm{millisecond}$. The value of self inductance is 

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 208

A varying current in a coil changes from $10 \mathrm{A}$ to zero in $0.5 \mathrm{s}$. If the average e.m.f induced in the coil is $220 \mathrm{V}$, then the self-inductance of the coil is
 

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 209

In a coil, $L=5 \mathrm{H}$current changes at the rate of $2 \mathrm{A}$ per second. The $\mathrm{e}.\mathrm{m}.\mathrm{f}.$ induced 
 

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 210

The inductance of a closed-packed coil of $400 \mathrm{turns}$ is $8 \mathrm{mH}$. A current of $5 \mathrm{mA}$ is passed through it. The magnetic flux through each turn of the coil is 
 

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 211

A long solenoid has $500 \mathrm{turns}$. When a current of $2 \mathrm{A}$ is passed through it, the resulting magnetic flux linked with each turn of the solenoid is $4\times {10}^{-3}\mathrm{Wb}$. The self-inductance of the solenoid is

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 212

A long solenoid has $1000 \mathrm{turns}$. When a current of $4 \mathrm{A}$ flows through it, the magnetic flux linked with each turn of the solenoid is $4\times {10}^{-3}$ $\mathrm{Wb}$. The self-inductance of the solenoid is

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 18 - Electromagnetic Induction>Exercise 1>Q 213

The current passing through a choke coil of $5 \mathrm{H}$ is decreasing at the rate of $2 \mathrm{A} {\mathrm{s}}^{-1}$. The $\mathrm{e}.\mathrm{m}.\mathrm{f}.$ developing across the coil is