Question

the resistance of the filament in a light bulb is 1000 w. if the bulb is fed by a current from a source of potential difference 230 v, how much current will flow through it?

Answer 1

Using Ohm’s Law, it can be calculated that 0.23 amperes of current will flow through a light bulb with a resistance of 1000 Ohms when a potential difference of 230 volts is applied across it.

Step-by-step explanation:

To find out how much current will flow through the filament of a light bulb with a resistance of 1000 Ohms (Ω) when subjected to a potential difference of 230 volts (V), we use Ohm’s Law, which is represented by the equation I = V / R. Here, 'I' stands for current in amperes (A), 'V' is the voltage in volts (V), and 'R' is the resistance in Ohms (Ω).

Applying Ohm’s Law to this question:

• 
  
• Voltage (V) = 230 V
• 
  
• Resistance (R) = 1000 Ω

Therefore, the current (I) can be calculated as follows:

I = V / R = 230 V / 1000 Ω = 0.23 A

Hence, 0.23 amperes of current will flow through the light bulb.