A coil of self-inductance $$L$$ is connected in series with a bulb $$\mathrm{B}$$ and an AC source. The brightness of the bulb decreases when:

 1 number of turns in the coil is reduced. 2 a capacitance of reactance $$X_C = X_L$$ is included in the same circuit. 3 an iron rod is inserted in the coil. 4 frequency of the AC source is decreased.
Subtopic: Â Self - Inductance |
Â 67%
From NCERT
AIPMT - 2013
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A current of $$2.5$$ A flows through a coil of inductance $$5$$ H. The magnetic flux linked with the coil is:
1. $$0.5$$ Wb
2. $$12.5$$ Wb
3. zero
4. $$2$$ Wb
Subtopic: Â Self - Inductance |
Â 85%
From NCERT
NEET - 2013
Hints

The current ($$I$$) in the inductance is varying with time ($$t$$) according to the plot shown in the figure.

Which one of the following is the correct variation of voltage with time in the coil?
 1 2 3 4
Subtopic: Â Self - Inductance |
Â 73%
From NCERT
AIPMT - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh

A long solenoid has $$500$$ turns. When a current of $$2$$ A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is $$4\times 10^{-3}$$ Wb. The self-inductance of the solenoid is:
1. $$2.5$$ H
2. $$2.0$$ H
3. $$1.0$$ H
4. $$4.0$$ H

Subtopic: Â Self - Inductance |
Â 78%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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