If a circuit has a total power of 100W and a voltage of 50V, what is the current

Practice Questions

Q1
If a circuit has a total power of 100W and a voltage of 50V, what is the current flowing through the circuit? (2023)
  1. 1A
  2. 2A
  3. 3A
  4. 4A

Questions & Step-by-Step Solutions

If a circuit has a total power of 100W and a voltage of 50V, what is the current flowing through the circuit? (2023)
  • Step 1: Understand the formula for power in a circuit, which is P = V * I, where P is power, V is voltage, and I is current.
  • Step 2: Rearrange the formula to find current (I). This gives us I = P / V.
  • Step 3: Substitute the given values into the formula. Here, P = 100W and V = 50V.
  • Step 4: Calculate the current by dividing the power by the voltage: I = 100W / 50V.
  • Step 5: Perform the division: 100 divided by 50 equals 2.
  • Step 6: Conclude that the current flowing through the circuit is 2A.
  • Power in Electrical Circuits – Understanding the relationship between power (P), voltage (V), and current (I) using the formula P = VI.
  • Ohm's Law – Applying Ohm's Law to derive current from power and voltage.
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