Current Electricity questions
395 published questions with worked solutions.
- Voltmeters V_1 and V_2 are connected in series across D.C. line. V_1 reads 80 volts and has a per volt resistance of 200 and V_2...
- What resistance should be connected in series with a 0.5 A ammeter to convert it into a 15 V voltmeter? (given that the...
- A galvanometer of resistance 95 shunted by a resistance of 5 gives deflection of 50 divisions, when joined in series with...
- A galvanometer is said to be sensitive, if it gives
- An ammeter should have very low resistance, so that it may
- If galvanometer is shunted by 1/n^ th of its value, then what fraction of the current passes through the galvanometer?
- For the measurement of potential difference, voltmeter is connected
- The S.I. unit of current sensitivity is
- An ammeter gives full deflection when a current of 2 A flows through it. The resistance of the ammeter is 12 ohm. If the same...
- A galvanometer of resistance 36 is shunted by a resistance of 4 . The percentage of the total current passing through the...
- A galvanometer of resistance 90 is shunted by a resistance of 10 . What fraction of main current passes through the shunt?
- A galvanometer has a resistance of 3663 ohm. A shunt S is connected across it such that (1/34) of the total current passes...
- Voltmeters V_1 and V_2 are connected in series across a D.C. line. V_1 reads 80 volt and has a per volt resistance of 200 and V_2...
- A galvanometer of resistance 95 shunted by a resistance of 5 gives deflection of 50 divisions when joined in series with...
- The sensitivity of galvanometer is 50 div/A. When shunt is used its sensitivity becomes 10 div/A. If the resistance of...
- A moving coil galvanometer of resistance 5 has voltage sensitivity 2 div per mV. Its current sensitivity in div per mA is
- A galvanometer whose resistance is 120 gives full scale deflection with a current of 0.05 A so that it can read a maximum current...
- A galvanometer of resistance 99 requires 5 mA current for full scale deflection. It can be converted into an ammeter of range 0.5...
- Three moving coil galvanometer A, B and C made of coil of three different material having torsional constant 1.8 10^ -8 , 2.8 10^...
- Current sensitivity of a galvanometer is x div/mm and voltage sensitivity is y div/m. If resistance of galvanometer is G then...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration