A galvanometer is converted into a?voltmeter when we connect a
1). high resistance in series?
2). high resistance in parallel
3). low resistance in parallel?
4). low resistance in series
?A galvanometer is converted into an ammeter when we connect a
1). high resistance in series
2). ?high resistance in parallel
3). low resistance in series
4). ?low resistance in parallel?
The resistance of a wire is R. It is stretched uniformly so that its length is doubled. The resistance now becomes
1). 2R
2). R/2
3). 4 R
4). ?R/4
?A soap buble is given negative?charge then its radius
1). decreases
2). increases?
3). remains unchanged
4). none of these
A plant with green leaves placed in red light will appear
1). Green
2). Violet
3). Red
4). Blue