- AElectric field
- BMagnetic field lines
- CElectromagnetic induction
- DMagnetic induction
Explanation:
The production of electricity from magnetism is electromagnetic induction. Electric current can produce magnetism and the reverse is also true.
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The voltage gain of the following amplifier is
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(a) 10 |
(b) 100 |
(c) 1000 |
(d) 9.9 |
Assertion : The 200 W bulbs glows with more brightness then 100 W bulbs.
Reason : A 100 W bulb has more resistance than a 200 W bulb.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
A solenoid of 1.5 metre length and 4.0 cm diameter posses 10 turn per cm. A current of 5 ampere is flowing through it. The magnetic induction at axis inside the solenoid is
|
(a) 2π |
(b) 2π |
(c) 4π |
(d) 2π |
In the following diagram if V2 > V1 then

|
(a) |
(b) |
(c) |
(d) |
In the given figure each plate of capacitance C has partial value of charge
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(a) CE |
(b) |
(c) |
(d) |