MCQ
If ${E}$ and ${H}$ represents the intensity of electric field and magnetising field respectively, then the unit of $E/H$ will be :
- ✓$ohm$
- B$mho$
- C$joule$
- D$newton$
✓
Answer
Correct option: A.
$ohm$
a
Unit of $\frac{E}{H}$ is $\frac{\text { volt / metre }}{\text { Ampere / metre }}=\frac{\text { volt }}{\text { Ampere }}=$ $ohm$
Unit of $\frac{E}{H}$ is $\frac{\text { volt / metre }}{\text { Ampere / metre }}=\frac{\text { volt }}{\text { Ampere }}=$ $ohm$
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 solid cylinder of radius $R$ and mass $M$, rolls down on inclined plane without slipping and reaches the bottom with a speed $v$. The speed would be less than $v$ if we use
→A $300\ kg$ crate is dropped vertically onto a conveyor belt that is moving at $1.20\ m/s$. A motor maintains the belt's constant speed. The belt initially slides under the crate, with a coefficient of friction of $0.400$. After a short time, the crate is moving at the speed of the belt. During the period in which the crate is being accelerated, find the work done by the motor which drives the belt :- ................. $\mathrm{J}$
→A fan is making $600$ revolutions per minute. If after some time it makes $1200 $ revolutions per minute, then increase in its angular velocity is
→Identify the wrong statement:
The time of flight of an object projected with speed $20 \,ms ^{-1}$ at an angle $30^{\circ}$ with the horizontal, is .... $s$
→A point moves in $x-y$ plane as per $x=kt,$ $y = kt\left( {1 - \alpha t} \right)$ where $k\,\& \,\alpha \,$ are $+ve$ constants. The equation of trajectory is
→Two sound waves move in the same direction in the same medium. The pressure amplitudes of the waves are equal but the wavelength of the first wave is double the second. Let the average power transmitted across a cross$-$section by the first wave be $\mathrm{P}_1$ and that by the $1$ second wave be $\mathrm{P}_2$. Then,
→An aeroplane is flying with a uniform speed of $100\, m/s$ along a circular path of radius $100 m$. the angular speed of the aeroplane will be ......... $rad/sec$
→On increasing the temperature of a substance gradually, which of the following colours will be noticed by you
Acceleration-time graph of a body is shown. The corresponding velocity-time graph of the same body is
