Alternating Current questions
577 published questions with worked solutions.
- The peak value of the a.c. current flowing through a resistor is given by
- Dc ammeter is connected in a circuit through which an a.c. emf of 50 Hz is flowing the ammeter will read
- A voltmeter reads V volt in an A.C. circuit then V is
- If an A.C. ammeter reads IA in an A.C circuit, then the peak value of the current is
- Two cable of copper are of equal length one of them has a single wire of area of cross-section A, while the other has 10 wires of...
- Quantity that remains unchanged in a transformer is:
- Which quantity remains constant in ideal step down transformer?
- In a circuit L,C and R are connected in series with an alternating voltage source of frequency f. The current leads voltage by...
- In an ideal transformer, the primary and the secondary voltages always have
- In a step-up transformer, if the voltage in the secondary is increased, then the current in the primary
- The main purpose of laminating a transformer core is to reduce its
- The basic requirement for the operation of a transformer is that its input voltage must be
- Alternating current can be measured with the help of
- D.C. ammeter is connected in a circuit through which an A.C. of 50 Hz is flowing. The ammeter will read
- In a simple A.C. circuit containing resistance, the current
- An electric lamp is connected to 220 V, 50 Hz supply. Then the peak value of voltage is
- The peak value of an alternating current is 5 ampere, then r. m. s. value of current will be
- The r. m. s. value of alternating e. m. f is
- The reactance of a circuit is zero. It is possible that the circuit contains
- A condenser of 10 and an inductor of 1.2 H are connected in series with an A.C. source of frequency 50 Hz. The impedance of the...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesAnatomy 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 IntegrationChemical Kinetics