Electric Circuits A cube of material of side 1 cm has a resistance of 0.002 Ω between its opposite faces. If the same volume of the material has a length of 4 cm and a uniform cross - section, the resistance of this length will be 0.064 Ω. 0.016 Ω. 0.128 Ω. 0.032 Ω. 0.064 Ω. 0.016 Ω. 0.128 Ω. 0.032 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a lead acid cell PbSO4 formed during charging only. both during charging as well as discharging. discharging only. neither during charging nor discharging. charging only. both during charging as well as discharging. discharging only. neither during charging nor discharging. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor? 20 V. 50 V. 60 V. 30 V. 20 V. 50 V. 60 V. 30 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by σ ω ε. σ/ω ε. ω ε/σ. ω σ/ε. σ ω ε. σ/ω ε. ω ε/σ. ω σ/ε. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be 2R Ω R Ω 4R Ω 8R Ω 2R Ω R Ω 4R Ω 8R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is 4.71. 5.77. 2.36. 1.92. 4.71. 5.77. 2.36. 1.92. ANSWER DOWNLOAD EXAMIANS APP
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