Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? short circuit. dielectric losses decreases. open circuit. dielectric losses increases. short circuit. dielectric losses decreases. open circuit. dielectric losses increases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When AC flows through a pure capacitance then the current leads the emf by 90o. is in phase with emf. lags the emf by 90o. leads the emf by - 90o. leads the emf by 90o. is in phase with emf. lags the emf by 90o. leads the emf by - 90o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If conductance increases as temperature increases it is called as .......... positive co-efficient. both 1 and 2. None of these negative co-efficient. positive co-efficient. both 1 and 2. None of these negative co-efficient. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A variable capacitance is one whose capacitance changes with temperature. changes with voltage. changes with time. can be changed manually or by mechanical force. changes with temperature. changes with voltage. changes with time. can be changed manually or by mechanical force. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two resistor are said to be connected in parallel when both carry the same value of current. total current equals the sum of branch currents. both have the same potential difference. both ‘b’ and ‘c’ both carry the same value of current. total current equals the sum of branch currents. both have the same potential difference. both ‘b’ and ‘c’ ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A cube of material of side 1 cm has a resistance of 0.002 Ω between its opposite faces. If the same volume of the material has a length of 4 cm and a uniform cross - section, the resistance of this length will be 0.032 Ω. 0.064 Ω. 0.016 Ω. 0.128 Ω. 0.032 Ω. 0.064 Ω. 0.016 Ω. 0.128 Ω. ANSWER DOWNLOAD EXAMIANS APP
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