9. Consider the circuits given below :
(ii)
(a) In which circuit are the lamps dimmest?
(b) In which circuit or circuits are the lamps of equal brightness to the lamps in circuit (1) ?
(c) Which circuit gives out the maximum light?
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Explanation:
(b) In circuit (iii) the lamps are equal brightness in circuit (i) as both are connected in parallel. (c) in circuit, (ii), gives out the maximum light. explanation : generally, brightness or dimness depends on power supplied to appliances (i.e., lamp or bulb), lamp will be more brighter when it gets more power.
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