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Chapter 4: Q13DQ (page 947)

In the circuit figure when switch S is suddenly closed, the wire L is pulled toward the lower wire carrying current I. Which (a or b) is the positive terminal of the battery? How do you know?

Short Answer

Expert verified

The current flow from right to left that鈥檚 why pointis positive terminal of the battery.

Step by step solution

01

Definition of current

The term current may be defined as the ratio of charge and time.

02

Explain reason which is positive terminal of battery

If current flow in same direction the force between two parallel current wires is attractive force and if current flow in opposite direction the force between two parallel current wires is repulsive and the current flow from right to leftthat鈥檚 why pointis positive terminal of the battery.

Hence, the current flow from right to left that鈥檚 why pointis positive terminal of the battery.

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