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Electric Circuits

Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.01 A.
 0.1 A.
 0.316 A.
 1 A.

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Electric Circuits
A 100 μF capacitor supplied from 3 V source with a frequency of 50 Hz. The capacitive reactance is

 15.92 Ω.
 63.68 Ω.
 31.84 Ω.
 7.96 Ω.

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Electric Circuits
An electrical circuit with 10 branches and 7 nodes will have

 3 loop equations.
 7 loop equations.
  4 loop equations.
  10 loop equations.

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Electric Circuits
A parallel plate capacitor contain there dielectric layers of 1, 2 and 3 respectively and thickness of dielectric layers are 0.2 mm, 0.3 mm and 0.4 mm respectively. If area of plate is 20 cm2. What is the value of capacitance?

 32 pF.
 30 pF.
 36.6 pF.
 None of them.

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Electric Circuits
Absolute permittivity of dielectric medium is represented as

 ε0
 εr
 εr/ε0
 εrε0

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Electric Circuits
What is called the frequency in AC operation?

 No. of (-) ve quadrature made per second.
 No. of cycles made per second.
 No. of wave made per second.
 No. of (+) ve quadrature made per second.

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