Electric Circuits A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least when capacitor is half charged. initially. when capacitor is almost 25% charged. when capacitor is fully charged. when capacitor is half charged. initially. when capacitor is almost 25% charged. when capacitor is fully charged. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The value of supply voltage for 400 W, 4 Ω load is 400 V. 20 V. 40 V. 200 V. 400 V. 20 V. 40 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following is not equivalent to watts? Ampere2 – Ohm. Joules per second. Ampere-volts. Amperes/volt. Ampere2 – Ohm. Joules per second. Ampere-volts. Amperes/volt. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits At which of the following frequency voltage across capacitor has maximum value for series circuit ? Less than resonance frequency Greater than resonance frequency Equal to resonance frequency Zero frequency Less than resonance frequency Greater than resonance frequency Equal to resonance frequency Zero frequency ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following is the heaviest? Molecule. Proton. Atom. Electron. Molecule. Proton. Atom. Electron. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which cell has the reversible chemical reaction? Carbon Zinc. Mercury oxide. Lead acid. Silver oxide. Carbon Zinc. Mercury oxide. Lead acid. Silver oxide. ANSWER DOWNLOAD EXAMIANS APP
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