Physics - Single MCQs (Page 32)

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Q311. Electromagnetic waves emitted from antenna are?...Q312. Electromagnetic waves transport?...Q313. A changing magnetic flux produces around itself an induced?...Q314. An alternating current or voltage?...Q315. Terminal potential difference of a battery is greater than its emf when?...Q316. A fuse is placed in series with the cireuit to protect against?...Q317. Electrical energy is converted to heat at the rate of?...Q318. All electrical appliances are connected in parallel to each other between the ma...Q319. Why should a resistance be introduced in a circuit in series deliberately?...Q320. The resistance of a conductor at absolute zero (OK) is?...