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CBSE - XII Science - Physics - Electromagnetic Induction
in which situation there is displacement current but no conduction current
Asked by sonamranayt
15th January 2024,
11:30 PM
CBSE - XII Science - Physics - Electromagnetic Induction
A changing electric field produces a changing magnetic field.Then why does a changing electric flux through a closed loop not produce any emf?
Asked by joykphukan
23rd December 2015,
6:08 PM
CBSE - XII Science - Physics - Electromagnetic Induction
In case of motional EMF induced in a loop due to the sliding of a rod over a U shaped conducting wire, we consider the case where the velocity of the rod is constant. Why do we not consider a case where velocity is changing w.r.t time i.e., where an acceleration comes into play? Also, in the methods of inducing emf, why don't we consider a change in velocity of the coil (linear in case of a rod sliding over U shaped wire and angular in case of the rod rotating)?
Asked by hilhew7
6th August 2015,
10:20 PM
CBSE - XII Science - Physics - Electromagnetic Induction
The AC voltage across the resistance can be measured using a:
1.potentiometer
2.hot wire voltmeter
3.moving magnet galvanometer
4.moving coil galvanometer
The AC voltage across the resistance can be measured using a:
1.potentiometer
2.hot wire voltmeter
3.moving magnet galvanometer
4.moving coil galvanometer
Asked by rakshitreshu1997
18th April 2015,
5:09 PM
CBSE - XII Science - Physics - Electromagnetic Induction
an electron does not suffer any deflection while passing through a region of uniform magnetic field.what is the direction of the magnetic field?
Asked by lolepradnya
27th September 2014,
7:26 PM
CBSE - XII Science - Physics - Electromagnetic Induction
what are the key points written for ac generator for 5 marks
Asked by nandanaathira
15th August 2014,
12:02 PM
CBSE - XII Science - Physics - Electromagnetic Induction
hw to attrnd a 5 mark question ac generator what should be the key points?
Asked by nandanaathira
12th August 2014,
9:48 PM
CBSE - XII Science - Physics - Electromagnetic Induction
A metallic square of loop ABCD of size 15 cm and Resistance 1 ohm is moved at uniform velocity of vm/s in a uniform magnetic field of 2TesIa the field lines being normal to the plane of paper. The loop is connected to an electrical network of customs, each of resistance 2 ohms. Calculate the Speed of the loop, for which 2mA Current fun in loop.
Asked by Rohan Astik
5th June 2014,
7:43 AM
CBSE - XII Science - Physics - Electromagnetic Induction
Asked by NIKHIL
14th April 2014,
4:23 PM
CBSE - XII Science - Physics - Electromagnetic Induction
State Lenzs Law. A metallic rod held horizontally along east-west direction, is allowed to fall under gravity. Will there be an emf induced at its ends? Justify your answer
Asked by sujata shahid
3rd March 2014,
9:42 PM
