Question

1. a changed value component in an rl parallel circuit

a measures 0 volts across it
b causes current to stop
c measures the applied voltage across it
d increases or decreases the opposition to current

Explanation:

In an RL parallel circuit, the voltage across each component (resistor and inductor) is the same as the applied voltage. So, option a is incorrect. Current doesn't stop just because a component value changes (unless it's an open - circuit, but that's not indicated by a 'changed value' in general), so option b is wrong. Option c is a general property of parallel circuits (voltage across parallel components is the same as the source voltage), but it doesn't address the 'changed value' aspect. When the value of a component (either resistance or inductance) changes, it changes the opposition to current (resistance \(R\) directly opposes current as \(I=\frac{V}{R}\), and inductive reactance \(X_L = 2\pi fL\) opposes current in an AC circuit).

Answer:

d. increases or decreases the opposition to current