A dynamo converts
A dynamo converts Options (a) mechanical energy into thermal energy (b) electrical energy into thermal energy (c) thermal energy into…
7 years ago
Alternating Current
A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance
A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance 10Ω. If a frequency AC source is…
7 years ago
A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH, while its effective…
7 years ago
A current of 5 A is flowing at 220 V in the primary coil of a transformer. If the voltage
A current of 5 A is flowing at 220 V in the primary coil of a transformer. If the voltage…
7 years ago
10 mA current can pass through a galvanometer of resistance 25 ohm.
10 mA current can pass through a galvanometer of resistance 25 ohm. What resistance in series should be connected through…
7 years ago
Alternating current cannot be measured by D.C Ammeter because
Alternating current cannot be measured by D.C Ammeter because Options (a) A.C cannot pass through D.C Ammeter (b) A.C changes…
7 years ago
In an A.C circuit of capacitance the current from potential is
In an A.C circuit of capacitance the current from potential is Options (a) in same phase (b) in opposite phase…
7 years ago
In a pure capacitive A.C circuit, current and voltage differ in phase by
In a pure capacitive A.C circuit, current and voltage differ in phase by Options (a) 0° (b) 45° (c) 90°…
7 years ago
If the value of potential in an A.C circuit is 10 V, the peak value of potential is
If the value of potential in an A.C circuit is 10 V, the peak value of potential is Options (a)…
7 years ago
Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A
Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A is Options (a)…
7 years ago