C: hairdryer
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A 6V supply is connected in series with an ammeter and a 4Ω resistor. What is the reading on the ammeter?
Sets of voltage-current readings are obtained for different electrical components. Which set of readings is for a 10Ω…
A student tests the circuit of a press-button telephone with a lamp and a battery. Which single switch can be pressed…
A student holds a sheet of paper with letters on it facing a plane mirror. The letters on the paper are shown. TOF Wh…
A semi-circular block is made from a plastic. A ray of light passes through it at the angles shown. To two decimal pl…
Convex lenses are used in cameras and as magnifying glasses. Which types of image are formed?