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Physics

Physics
Positive feedback is used in

Amplifiers
Rectifiers
None of these
Oscillators

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Physics
Permissible noise level at Residential area during night time is :

80 dB (A)
75 dB (A)
45 dB (A)
55 dB (A)

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Physics
A light year is a measure of :

Speed
Distance
Velocity
Time

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Physics
Tensional forces normally cause which one of the following?

Normal faults
Thrust faults
Strike-slip faults
Reverse faults

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Physics
Fleming's right hand rule is used to find the direction of the

Actual current
Induced current
Alternate current
Direct current

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Physics
How many laws of physics are there?

4
5
3
2

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