NEET Physics Question - Current Electricity

Assertion (A): If \(V_b > V_a\) current flows from \(b\) to \(a\).

Reason (R): Direction of current inside battery is always from -ve to +ve terminal.

(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)

(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(3) (A) is true but (R) is false

(4) Both (A) and (R) are false

Solution:

Current in a resistor always flows from a region of higher potential to a region of lower potential. Therefore, if \(V_b > V_a\), current flows from \(b\) to \(a\). So, Assertion (A) is true. Inside a battery, the chemical processes drive positive charges from the negative terminal to the positive terminal. So, Reason (R) is true. However, the direction of current flow in a resistor (Assertion) is a fundamental concept of Ohm's law and potential difference, unrelated to the internal operation of a battery (Reason). Thus, R does not explain A.

Rankers Physics

Battery and Current Flow

Solution:

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