Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The form factor of sinusoidal alternating current is 0. 1.15. 1.11. 1. 0. 1.15. 1.11. 1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of sine wave is 100 A. Its peak value is 150 A. 141.4 A. 282.8 A. 70.7 A. 150 A. 141.4 A. 282.8 A. 70.7 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An alternating voltage = 140 sinθ is supplied to a device which offers a resistance of 20 Ω in forward direction of current in reverse direction. Calculate the form factor. 1.11. 0.318. 1.414. 0.57. 1.11. 0.318. 1.414. 0.57. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is doubled. increase by two times. halved. remain same. doubled. increase by two times. halved. remain same. ANSWER DOWNLOAD EXAMIANS APP
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