Q8. Which of the following statements are correct?
A. The relative motion between a magnet and a coi

Q: What is the correct answer for CUET UG Physics Q8?

The correct answer is D. A. Electromagnetic induction is a phenomenon in which a changing magnetic field across a wire loop produces an induced emf. When a magnet and a coil move relative to one another, magnetic flux changes, and an electromotive force is generated in the coil. (Correct)B. Magnetic flux is the scalar product (dot product) of the magnetic field vector (B) and elementary area vector (dA). Thus, it is a sca

Q: Q8. Which of the following statements are correct? A. The relative motion between a magnet and a coil is responsible for induction of electric current in the coil. B. Magnetic flux is a vector…

The correct answer is D. A. Electromagnetic induction is a phenomenon in which a changing magnetic field across a wire loop produces an induced emf. When a magnet and a coil move relative to one another, magnetic flux changes, and an electromotive force is generated in the coil. (Correct)B. Magnetic flux is the scalar product (dot product) of the magnetic field vector (B) and elementary area vector (dA). Thus, it is a sca

Q: What are the options for this CUET UG Physics question?

A. B, C and D only · B. A, B, D and E only · C. A, B and D only · D. A, C and E only

Question

Q8. Which of the following statements are correct?
A. The relative motion between a magnet and a coil is responsible for induction of electric current in the coil.
B. Magnetic flux is a vector quantity.
C. In a closed coil, the magnitude of emf induced is equal to the time rate of change of magnetic flux.
D. Eddy currents oppose the magnetic braking effect in trains.
E. Lenz's law gives the polarity of the induced emf clearly.

Choose the correct answer from the options given below:

FirstInTest · Accepted Answer

A. Electromagnetic induction is a phenomenon in which a changing magnetic field across a wire loop produces an induced emf. When a magnet and a coil move relative to one another, magnetic flux changes, and an electromotive force is generated in the coil. (Correct)B. Magnetic flux is the scalar product (dot product) of the magnetic field vector (B) and elementary area vector (dA). Thus, it is a scalar quantity. (Incorrect)C. Faraday's second law of electromagnetic induction states that the magnitude of emf induced in the coil is equal to the rate of change of flux that linkages with the coil. The flux linkage of the coil is the product of the number of turns in the coil and flux associated with the coil (Correct)D. The working of magnetic braking of trains is based on eddy current. (This statement is ambiguous; eddy currents *cause* the braking effect by opposing motion, they don't oppose the braking effect itself. Based on the selected option (d), this statement is considered incorrect by the provided solution's logic.)E. Lenz's law states that the polarity of induced emf is such that it tends to produce a current which opposes the change in magnetic flux that produced it. (Correct)Therefore, A, C, and E are correct statements.

Answer

B, C and D only

Answer

A, B, D and E only

Answer

A, B and D only

Answer

A, C and E only

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