ICSE Class 9 Current Electricity — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ICSE Class 9 Current Electricity in the app →Direct current (d.c.) is defined as a current thatIn a cell, the source of energy isPrimary cells differ from secondary cells because primary cellsConventional current flows fromElectric current is defined as theThe SI unit of electric current is thePotential difference between two points equals theOhm's law states that V/I equals a constant calledIf a current of 2 A flows through a resistance of 5 ohm, the potential difference across it isA material whose resistance is so high that no current flows through it is calledA current of 0.5 A passes for 2 minutes through a circuit. The charge transferred isThe work done in moving 5 C of charge between two points kept at a potential difference of 4 V isIn a torch circuit the cell pushes current of 0.3 A through a bulb of 8 ohm. The voltage of the cell isWhich of the following statements about secondary cells is correct?A lead accumulator is used in a car becauseAn ammeter is a device used to measureTwo main ways to reduce electrical energy consumption suggested by the chapter areIf 60 C of charge flows in 30 s, the current isWhich is a correct closed circuit?A current of 1 A is defined as the flow of