Electric Circuits A current is said to be alternating when it changes in none of these. magnitude. both ‘a’ and ‘b’. direction. none of these. magnitude. both ‘a’ and ‘b’. direction. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistor stores the energy in the form of electrical field. magnetic field. None of these both A and B. electrical field. magnetic field. None of these both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three 3Ω resistors are connected to form a triangle. What is the resistance between any two of the corner? 2 Ω. 3 Ω. 9 Ω. 6 Ω. 2 Ω. 3 Ω. 9 Ω. 6 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For occurrence of resonance which of the following elements are required? C Both 2 and 3 L R C Both 2 and 3 L R ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 10 Hz. 1000 Hz. 1 Hz. 100 Hz. 10 Hz. 1000 Hz. 1 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
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 2R Ω R Ω 4R Ω 8R Ω 2R Ω R Ω 4R Ω 8R Ω ANSWER DOWNLOAD EXAMIANS APP
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