Electric circuits — Grade 11 Past Paper Questions

A bar magnet's north pole is pushed into a solenoid. Determine the induced polarity at solenoid end X and the direction of induced current flow.

Three identical bulbs X, Y, Z connected to a battery with voltmeters and ammeters. Compare brightness, identify ammeter readings with switch open and closed, analyze effects when bulb Y burns.

Three resistors in a circuit with 12 V battery having internal resistance r. Given voltmeter readings, calculate ammeter current, resistor R value, and internal resistance.

A battery with 0.5 Ω internal resistance and unknown EMF powers a circuit with resistors and a voltmeter. With 0.5 A through an 8 Ω resistor and 12 W in resistor R, calculate currents and battery EMF.

A circuit containing resistors and a bulb is powered by a 12 V battery with internal resistance. Using a voltmeter reading of 4.8 V, calculate the internal resistance, parallel resistance, current, power dissipated by the bulb, and how brightness changes when the switch opens.

Multiple-choice: which graph correctly shows the relationship between total electrical energy transferred and electric current in a kettle element at constant resistance and time.

Multiple-choice: when two charged objects' separation halves, how does the repulsive force change; compare bulb brightness in series circuit based on resistances.

Multiple-choice questions covering electromagnetic induction in solenoids, electrical potential and power relationships in resistors, and units for electrical charge flow rate.