Math Snap

STEP 1

1. The electromotive force (e.m.f) is 250 volts (V).
2. The current flowing through the resistance is 4 amperes (A).
3. We need to find the power developed in the circuit.
4. Power can be calculated using the formula $P = VI$, where $P$ is power, $V$ is voltage, and $I$ is current.

STEP 2

1. Identify the known values and the formula needed.
2. Substitute the known values into the formula.
3. Calculate the power.
4. Convert the power into kilowatts if necessary.

STEP 3

Identify the known values and the formula needed.
- Known values:
- Voltage ($V$) = 250 V
- Current ($I$) = 4 A
- Formula for power ($P$):
$$P = VI$$

STEP 4

Substitute the known values into the formula.
$$P = 250 \, \text{V} \times 4 \, \text{A}$$

STEP 5

Calculate the power.
$$P = 250 \times 4 = 1000 \, \text{W}$$

Convert the power into kilowatts if necessary.
Since $1 \, \text{kW} = 1000 \, \text{W}$, we have:
$$P = 1000 \, \text{W} = 1 \, \text{kW}$$ The power developed is:
$$\boxed{1 \, \text{kW}}$$