KCET 2020 | Electromagnetic Induction Question 13 | Physics

The current in a coil of inductance $$0.2 \mathrm{H}$$ changes from $$5 \mathrm{~A}$$ to $$2 \mathrm{~A}$$ in $$0.5 \mathrm{~s}$$. The magnitude of the average induced emf in the coil is

0.6 V

1.2 V

30 V

0.3 V

KCET 2019

MCQ (Single Correct Answer)

-0

Consider the situation given in figure. The wire $$A B$$ is slid on the fixed rails with a constant velocity. If the wire $$A B$$ is replaced by a semicircular wire, the magnitude of the induced current will

KCET 2019 Physics - Electromagnetic Induction Question 10 English

increase

remain same

decrease

increase or decrease depending on whether the semicircle bulges towards the resistance or away from it.

KCET 2018

MCQ (Single Correct Answer)

-0

The magnetic flux linked with a coil varies as $\phi=3 t^2+4 t+9$. The magnitude of the emf induced at $t=2 \mathrm{~s}$ is

8 V

32 V

16 V

64 V

KCET 2018

MCQ (Single Correct Answer)

-0

A step-up transformer operates on a 230 V "ne and a load current of 2 A . The ratio of primary and secondary windings is $1: 25$. Then, the current in the primary is

25 A

50 A

15 A

12.5 A

Previous Next

Questions Asked from MCQ (Single Correct Answer)

KCET 2025 (1) KCET 2024 (3) KCET 2023 (3) KCET 2022 (2) KCET 2021 (2) KCET 2020 (2) KCET 2019 (1) KCET 2018 (2) KCET 2017 (3)

KCET Subjects