Electrostatic and Capacitance Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is 8 µF 4 µF 1 µF 2 µF 8 µF 4 µF 1 µF 2 µF ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ? It will get punctured or cracked It will become magnetic Its molecular structure will get changed It will melt It will get punctured or cracked It will become magnetic Its molecular structure will get changed It will melt ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the Charge on the capacitor increases Voltage across the plates decreases Charge on the capacitor decreases Voltage across the plates increases Charge on the capacitor increases Voltage across the plates decreases Charge on the capacitor decreases Voltage across the plates increases ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by RC R/C C/R 1/RC RC R/C C/R 1/RC ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance is that property of a capacitor which delays any change of voltage across it. Inductance None of these Potential gradient Capacitance Inductance None of these Potential gradient Capacitance ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance For making a capacitor, it is better to select a dielectric having Permittivity same as that of air High permeability Permittivity slightly more than that of air Low permeability Permittivity same as that of air High permeability Permittivity slightly more than that of air Low permeability ANSWER DOWNLOAD EXAMIANS APP
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