Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be R Ω 8R Ω 4R Ω 2R Ω R Ω 8R Ω 4R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In parallel RC circuit total current is 5A and current through resistor is 3A. What is the current through capacitor? 5A 4A 3A 2A 5A 4A 3A 2A ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Five cells are connected in series in a row and then four such rows are connected in parallel to Feed the current to a resistive load of 1.25Ω. Each cell has an emf of 1.5 V with internal resistance Of 0.2Ω. The current through the load will be 23.33 A 3.33 A 5 A 1 A 23.33 A 3.33 A 5 A 1 A ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V. 50 36 8 2 50 36 8 2 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 400 Ohms. 200 Ohms. 50 Ohms. 100 Ohms. 400 Ohms. 200 Ohms. 50 Ohms. 100 Ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The mass of a neutron of atom is 1.672 × 10 - 26 Kg. 1.602 × 10 - 19 Kg. 1.609 × 10 - 31 Kg. 1.675 × 10 - 27 Kg. 1.672 × 10 - 26 Kg. 1.602 × 10 - 19 Kg. 1.609 × 10 - 31 Kg. 1.675 × 10 - 27 Kg. ANSWER DOWNLOAD EXAMIANS APP
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