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Physics

Physics
In AC circuits, AC meters measure

Mean square values
Mean values
Peak values
Rms values

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Physics
What is the range of masses involved in the study of Physics?

10-30 kg to 1030 kg
10-19 kg to 1038 kg
10-19 kg to 1055 kg
10-30 kg to 1055 kg

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Physics
A man jumping out of a moving train is thrown

Backward
Sideways
None of these
Forward

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Physics
The purpose of choke in a fluorescent lamp is :

To decrease the resistance
To increase the current flow
To decrease the current flow
Ro decrease the voltage momentarily

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Physics
A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

< P
2P
P
> P

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Physics
Rotameter is used to measure

Flow of fluids
Density of fluids
Velocity of fluid in pipes
Vortex flow

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