Electrostatic and Capacitance A 0.47 µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is 170 Ω 0.000169 Ω 17 Ω 1.7 Ω 170 Ω 0.000169 Ω 17 Ω 1.7 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance “The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface”.The above statement is associated with Lenz’s law Gauss’s law Faraday’s law Kirchhoff's law Lenz’s law Gauss’s law Faraday’s law Kirchhoff's law ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance When the plate area of a capacitor increases, The capacitance decreases The capacitance increases The capacitance is unaffected The voltage it can withstand increases The capacitance decreases The capacitance increases The capacitance is unaffected The voltage it can withstand increases ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The potential gradient across the material of low permittivity is than across the material of high permittivity. both (A) and (B) smaller greater None of these both (A) and (B) smaller greater None of these ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance A 4.7 MΩ resistor is in series with a 0.015 µF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge? 70.5 ms 352 ms 3.5 ms 35 ms 70.5 ms 352 ms 3.5 ms 35 ms ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance What is the capacitance when Q = 60 µC and V = 12 V? 50 µF 720 µF 5 µF 12 µF 50 µF 720 µF 5 µF 12 µF ANSWER DOWNLOAD EXAMIANS APP
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