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# SSC JE Magnetic circuits Quiz 68

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Question 1

An electric current flows through the conductor shown in the figure below.
What are the effects of the current passing through it?

Question 2

Beyond what temperature does the gas vaporize and blackens the lamp in a gas filled lamp?

Question 3

The small pockets of air in the high voltage cable provide ____ relative permittivity, ____ electric field and at these sites breakdown is likely to be initiated.

Question 4

Two lossy capacitors with equal capacitance values and power factors of 0.01 and 0.02 are in parallel, and the combination is supplied from a sinusoidal voltage source. The power factor of the combination is

Question 5

A piece of oil soaked paper has been inserted between the plates of a parallel plate capacitor. Then the potential difference between the plates will

Question 6

Five equal capacitors connected in series have a resultant capacitance of When these capacitors are connected in parallel and charged to 400 V d.c., the total energy stored is

Question 7

drops of mercury of equal radii and possessing equal charges combine to form a bigger drop. The ratio of capacitances of bigger drop to smaller drop is

Question 8

The electric potential V as a function of distance x (in metres) is given by;

The value of electric field at x = 1 m would be

Question 9

A particle carrying a charge of 10-5 C begins to move in a uniform electric field of strength 50 Vm-A. After travelling a distance of 1 m, the kinetic energy of the particle will be

Question 10

While charging accumulators, one should
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