Which of the following statements about current are true? (i) In metal wires, it is the negative charges (Le, the electrons) that move in response to an applied voltage. (ii) By historic convention, circuit diagrams are drawn showing the direction of a "conventional current' as if it were positive charges that move (even though they do not).(iii) The "conventional current" runs in the opposite direction to the actual motion of the electrons. a. Only statement (ii) is true. b.Only statements (i) and (lil) are true. c.Only statement (i) is true. d.All three statements are true.

d. All three statements are true.

Explanation:

In the metals the electrons are the charge carriers and they are the only mobile charges causing the flow of current when subjected to potential difference.

The electrons being negatively lead to the flow of current in opposite direction. The direction of the current is opposite to the direction of the negative charges.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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