Question

How would the reading of (V) change if it is connected
between B and C?​

Answer 1

Explanation:

Between A and B, V=0.5

Between B and C, V=1.5

Answer 2

In this circuit diagram the resistors are connected in series. In a series circuit connection the voltage gets divided.

Therefore when the voltmeter is connected between B and C the reading of the voltmeter would change. Since we know the total voltage flowing in the circuit we will first find out the total resistance in a series connection and then find out the current flowing in the circuit.

$w \: know \: that \\ total \: resistance = 1 + 2 + 3 = 6ohms \\ know \\ v = 3volts \\ r = 6ohms \\ we \: know \: that \\ v = ir \\ 3 = i6 \\ i = \frac{3}{6 } \\ i = \frac{1}{2} = 0.5 \\ now \\ v \: between \: b \: and \: c = v = ir \\ v = 0.5 \times 3 \\ v = 1.5volts$