When a rod of length l is rotated with a...

When a rod of length l is rotated with angular velocity of `omega` in a perpendicular field of induction B , about one end , the emf across its ends is

`Bomegal^(2)`

`2Bomegal^(2)`

`(1)/(2)Bomegal^(2)`

`(3)/(2)Bomegal^(2)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELASTICITY
NIKITA PUBLICATION|Exercise MCQ|314 Videos
ELECTRONS AND PHOTONS
NIKITA PUBLICATION|Exercise MCQs|162 Videos

Similar Questions

Explore conceptually related problems

A rod of length l rotates with a uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the two ends of the lrod is

A uniform stick of length l and mass m lies on a smooth table. It rotates with angular velocity omega about an axis perpendicular to the table and through one end of the stick. The angular momentum of the stick about the end is

A square loop of side a is rotating about its diagonal with angular velocity omega in a perpendicular magnetic field vec(B) It has 10 turns. The emf induced is

A conducting rod of length l is rotating with constant angular velocity omega about point O in a uniform magnetic field B as shown in the figure . What is the emf induced between ends P and Q ?

A rod of length 20 cm is rotating with angular speed of 100 rps in a magnetic field of strength 0.5 T about it’s one end . What is the potential difference betweet two ends of the rod :

A rod of length l rotates with a small but uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the centre of the rod and an end is

An insulating rod of length l and charge carries q distributed uniformly on it. The rod is pivoted at its one end and it rotated with angular velocity omega about a fix axis perpendicular to the rod and passing through the pivot. The magnetic moment of rhe system is

(a) A metal rod of length L rotates about an end with a uniform angular velocity omega . A uniform magnetic field B exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they move in circular paths. (b) A rod of length L rotates with a small but uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. Find the potential difference (i) between the centre of rod and one end and (ii) between the two ends of the rod.

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs

A half metre rod is rotating abou tone fixed end perpendicular to unif...
Text Solution
|
In an RLC circuit, capacitance is changed from C to 2C. For the resona...
Text Solution
|
When a rod of length l is rotated with angular velocity of omega in a ...
Text Solution
|
Resistance of earth coil is 7Omega. If flux associated with coil chang...
Text Solution
|
In the induction coil, across secondary coil the output voltage is pra...
Text Solution
|
A wire of length 2.5 km and resistance 35 Omega has fallen from a heig...
Text Solution
|
The average value dissipated by resistance is (I(0)=peak value of curr...
Text Solution
|
If a rate of change of current of 4 As^(-1) induces an emf of 20 mV in...
Text Solution
|
If the P.D. across the inductor (3mH) is the same as that across the c...
Text Solution
|
When a rod of length l is rotated with angular velocity of omega in a ...
Text Solution
|
A coil of self inductance 20 mH, having 50 turns, carries a current of...
Text Solution
|
A.C. voltmeter is connected to a source of e(0)=141.4 volt, then it wi...
Text Solution
|
Inductance of a coil is 5 mH is connected to AC source of 220 V, 50 Hz...
Text Solution
|
A rectangular coil of 25 turns, area of 25cm^(2) and resistance of 4 o...
Text Solution
|
Henry is equivalent to
Text Solution
|
In a purely resistive AS circuit,
Text Solution
|
In a series LCR circuit, at resonance, power factor is …….. .
Text Solution
|
An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...
Text Solution
|
Same current is flowing in two alternating circuits. The first circuit...
Text Solution
|
In a circuit, the current lags behind the voltage by a phase differenc...
Text Solution
|