HOTS V — task. Science CBSE, Class 10.

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1. In a meter bridge experiment null point is obtained at

$20\ cm$ from one end of the wire when resistance

$X$ is balanced against another resistance

$Y$ . If

$X\ <\ Y$ , then where will be the new position of the null point from the same end, if one decides to balance a resistance of

$4X$ against

$Y$ :

2. In a potentiometer experiment the balancing with a cell is at length

$240\ cm$ . On shunting the cell with a resistance of

$2\ \Omega$ , the balancing length becomes

$120\ cm$ . The internal resistance of the coil is:

Did you find an error?

58. HOTS V