A series R-C circuit is connected to an alternating voltage source. Consider two
A series R-C circuit is connected to an alternating voltage source. Consider two situations: (A) When capacitor is air filled…
6 years ago
Alternating Current
A resistance R draws power P when connected to an AC source. If an inductance
A resistance R draws power P when connected to an AC source. If an inductance is now placed in series…
6 years ago
A transformer having efficiency of 90% is working on 200 V and 3kW power supply
A transformer having efficiency of 90% is working on 200 V and 3kW power supply. If the current in the…
6 years ago
An alternating voltage e=200s in100t is applied to a series combination
An alternating voltage e=200s in100t is applied to a series combination of R= 30Ω and an inductor of 400 mH.…
6 years ago
An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery fo 5…
6 years ago
In an AC circuit the potential differences across an inductance and resistance joined
In an AC circuit the potential differences across an inductance and resistance joined in series are respectively 16 V and…
6 years ago
An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is Options (a) 210 V…
6 years ago
In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω, then the value of…
6 years ago
An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source 200V,…
6 years ago
Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively and resistance 8 Ω…
6 years ago