Electric Circuits What will be the capacitance when distance between the 2 plates of a condenser of capacitance 8 micro farad is reduced from 10 mm to 4 mm? 1 microfarad. 20 microfarad. 3.2 microfarad. 8 microfarad. 1 microfarad. 20 microfarad. 3.2 microfarad. 8 microfarad. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance? 1.765 Ω. 63.7 Ω. 0.015 Ω. 135.86 Ω. 1.765 Ω. 63.7 Ω. 0.015 Ω. 135.86 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor contain there dielectric layers of 1, 2 and 3 respectively and thickness of dielectric layers are 0.2 mm, 0.3 mm and 0.4 mm respectively. If area of plate is 20 cm2. What is the value of capacitance? 36.6 pF. 30 pF. 32 pF. None of them. 36.6 pF. 30 pF. 32 pF. None of them. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A paper capacitor is usually available in form of disc. rolled foil. meshed plates. tubes. disc. rolled foil. meshed plates. tubes. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10Ω resistor is stretched to increase its length double. Its resistance will now be 10 Ω. 20 Ω. 5 Ω. 40 Ω. 10 Ω. 20 Ω. 5 Ω. 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Emf induced in a coil rotating in a uniform magnetic field will be maximum when the rate of change of flux linkage is maximum. rate of change of flux linkage is minimum. flux linking with the coil is maximum. rate of cutting flux by coil sides is minimum. rate of change of flux linkage is maximum. rate of change of flux linkage is minimum. flux linking with the coil is maximum. rate of cutting flux by coil sides is minimum. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS