When a parallel plate capacitor is being charged by a DC battery Why does a galvanometer?
Answer Expert Verified During charging and discharging of the capacitor, there is a flow of charge from the battery towards the plates of the capacitor, which produces a conduction current in the circuit. Hence, the galvanometer present in the circuit shows momentary deflection.
Why does a galvanometer show a momentary deflection at the time of charging or discharging a capacitor?
During charging and discharging of the capacitor, there is a flow of charge from the battery towards the plates of the capacitor, which produces a conduction current in the circuit. Hence, the galvanometer present in the circuit shows momentary deflection.
What happens to the deflection in the galvanometer when the motion of the magnet stops?
There won’t be any deflection when the bar magnet is held stationary anywhere. When the magnet is moved away from the coil, the galvanometer shows deflection in the opposite direction indicating the direction of induced current in the reversed direction.
What is meant by momentary deflection?
Answer: Galvanometer is a electromechanical instrument used to detect and measure electric current. So in your case, the deflection is momentary because the capacitor draws some current during charging and during discharging it sources current.
What does momentary mean?
1a : continuing only a moment : fleeting. b : having a very brief life. 2 : operative or recurring at every moment. Other Words from momentary Synonyms & Antonyms Choose the Right Synonym Example Sentences Learn More about momentary.
Why does the galvanometer deflect in the opposite direction?
The deflection of the galvanometer’s needle is proportional to the current flowing through the coil. This action reverses the poles of the magnetic field generated around the coil as the current passes through it, so the coil swings in the opposite direction.
What is galvanometer function?
Galvanometer, instrument for measuring a small electrical current or a function of the current by deflection of a moving coil. The deflection is a mechanical rotation derived from forces resulting from the current.
Does an ammeter measure resistance?
Ammeters measure the current through components. Typically, ammeters have negligible resistance, so they do not affect the circuit.