Given a wire of resistance R . The resistance of a wire of the same m – McqOptions

MCQOPTIONS

1.	Given a wire of resistance R . The resistance of a wire of the same material and same weight and double the diameter is ___________
A.	0.5 R
B.	0.25 R
C.	0.125 R
D.	0.0625 R
Answer» E.

Discussion

No Comment Found

Related MCQs

Consider the self-inductances of two coils as 12 H and 5 H. 50 % of one flux links the other. The mutual inductance is ___________
For a series RL circuit, the impedance Z = 10 at a frequency of 50 Hz. At 100 Hz the impedance is ___________
Given two mutually coupled coils have a total inductance of 1500 mH, the self-inductance of each coils if the coefficient of coupling is 0.2 is ____________
Given two voltages, V1 = sin ( t + 60 ) and V2 = cos ( t). Which of the following is correct?
A current waveform is of the shape of a right angled triangle with period of t = 1 sec. Given a resistance R = 1 . The average power is __________
Consider a resistive network circuit, having 3 sources of 18 W, 50 W and 98 W respectively and a resistance R. When all source act together the maximum and minimum power is ____________
Consider an electric motor having resistance of 10 , 20 and 30 respectively. The percentage of energy dissipated by 10 earthing plate is ____________
For a practical voltage source, which of the following is correct?
For a series RL circuit having L = 5 H, current = 1 A (at an instant). The energy stored in magnetic field is ___________
The charge associated with a bulb rated as 20 W, 200 V and used for 10 minutes is ____________