an electric heater draws a current of 10A when connected to a 200 V supply. what current will the heater draw when it is connected to a 220 V supply.

To determine the current the electric heater will draw when connected to a 220 V supply, we can use Ohm's Law. Ohm's Law states that the current (I) flowing through a conductor is equal to the voltage (V) across the conductor divided by its resistance (R).

Since the resistance of the heater remains constant, we can assume that the current is directly proportional to the voltage. In other words, the current will increase proportionally to the increase in voltage.

Let's use the given information to calculate the resistance of the heater:

Given:
Voltage (V1) = 200 V
Current (I1) = 10 A

Using Ohm's Law:
Resistance (R) = V1 / I1
= 200 V / 10 A
= 20 Ω

Now that we know the resistance of the heater is 20 Ω, we can calculate the current (I2) when it is connected to a 220 V supply:

Voltage (V2) = 220 V
Current (I2) = V2 / R
= 220 V / 20 Ω
= 11 A

Therefore, the heater will draw a current of 11 A when connected to a 220 V supply.

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