Home
Class 12
PHYSICS
A: Faraday's law is an experimental law....

A: Faraday's law is an experimental law. R: Time varying magnetic field cannot generale induced emf.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion.

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

C

If Assertion is true statement but Reason is false.

D

If both Assertion and Reason are false statements.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we will break down the statements and evaluate their validity step by step. ### Step 1: Understand the Assertion **Assertion (A)**: "Faraday's law is an experimental law." - Faraday's law states that a change in magnetic flux through a circuit induces an electromotive force (emf) in the circuit. This law is based on experimental observations made by Michael Faraday in the 19th century. Therefore, this assertion is **true**. ### Step 2: Understand the Reason **Reason (R)**: "Time varying magnetic field cannot generate induced emf." - According to Faraday's law of electromagnetic induction, a time-varying magnetic field does indeed generate an induced emf. The induced emf can be calculated using the formula: \[ E = -\frac{d\Phi}{dt} \] where \(\Phi\) is the magnetic flux. The magnetic flux \(\Phi\) can change due to a time-varying magnetic field, which will induce an emf. Therefore, this reason is **false**. ### Step 3: Conclusion - Since the assertion is true and the reason is false, the correct conclusion is that the assertion is true, but the reason is false. ### Final Answer The correct answer is: **Assertion is true, but the reason is false.** ---
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -C) Previous Years Questions|34 Videos
  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise comprehension|3 Videos
  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

Similar Questions

Explore conceptually related problems

Faraday law represents :

Faraday's laws of electrolysis are related to :

Faraday's laws of electrolysis are related to

(A): In equation F=q(E+v xx B) when v = 0, any force on the charge must arise from the electric field term E alone (R): To explain, the existence of induced emf or induced current in static conductor kept in time - varying magnetic field, we must assume that a time - varying magnetic field generates an electric field

A conducting ring of radius ris placed perpendicularly inside a time varying magnetic field given by B=B_(0) + alphal . B_(0) and a are positive constants. E.m.f. induced in the ring is

A reacangular loop if size (2m xx 1m) is placed in x-y plane. A uniform but time varying magnetic field of strength T where t is the time elsapsed in second exists in sosace. The magnitude of induced emf (in V) at time t is

A conducting ring of radius r and resistance R is placed in region of uniform time varying magnetic field B which is perpendicular to the plane of the ring. It the magnetic field is changing at a rate alpha , then the current induced in the ring is

A metallic loop is placed in a nonuniform magnetic field. Will an emf be induced in the loop?

Statement-1 : The induced e.m.f. and current will be same in two identical loops of copper and aluminium, when rotated with same speed in the same magnetic field. Statement-2 : Induced e.m.f. is proportional to rate of change of magnetic field while induced current depends on resistance of wire.

A circular loop of radius 1m is placed in a varying magnetic field given as B=6t Tesla, where t is time in sec. (a)Find the emf induced in the coil if the plane of the coil is perpendicular to the magnetic field. (b) Find the electric field in the tangential directin, induced due to the changing magnetic field. (c)Find the current in the loop if its resistance is 1Omega//m .