Which of the following statements is true of ultra violet radiations? It
Which of the following statements is true of ultra violet radiations? It A. supports the sensation of hearing…
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The direction of induced current in a straight wire placed in magnetic field is determined…
The direction of induced current in a straight wire placed in magnetic field is determined by using A.…
One difference between a reactance and a resistance in an alternating current circuit is
One difference between a reactance and a resistance in an alternating current circuit is A. resistance is larger…
Which of the following statements about an electromagnet is correct?
Which of the following statements about an electromagnet is correct? A. it is a temporary magnet B. its…
A lamp is rated 240V 60W, calculate the resistance of its filament
A lamp is rated 240V 60W, calculate the resistance of its filament A. 240(Omega) B. 360(Omega) C. 960(Omega)…
The maximum power dissipated by a 100(Omega) resistor in a circuit is 4W. Calculate the…
The maximum power dissipated by a 100(Omega) resistor in a circuit is 4W. Calculate the voltage across the…
Which of the following factors does not affect the the electric resistance of a wire?
Which of the following factors does not affect the the electric resistance of a wire? A. length B.…
A current of 10A passes through a conductor for 10s, calculate the charge flowing through…
A current of 10A passes through a conductor for 10s, calculate the charge flowing through the conductor A.…
A positively charged glass rod is placed by near the cap of a positively charge…
A positively charged glass rod is placed by near the cap of a positively charge electroscope. The divergence…
Two identical cells each of e.m.f 2v and internal resistance 1.0(Omega) are connected in parallel….
Two identical cells each of e.m.f 2v and internal resistance 1.0(Omega) are connected in parallel. The combination is…