Question

The Kirchhoff's current law and voltage law are respectively based upon the conservation of

• A. charge, energy
• B. charge, momentum
• C. energy, charge
• D. momentum, charge

Hint:

An easy mnemonic to link these rules forever: Current goes with Charge (both start with 'C'), while Voltage goes with Energy (as voltage is defined as work/energy per unit charge). Keeping this simple keyword pairing in mind ensures you never mix them up!

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
Remember which physical quantity pairs with current and which pairs with voltage in electrical definitions.

Step 2: Key Formula or Approach:
Current (I) is the rate of charge flow: I = Q/t, linking Current with Charge. Voltage (V) is work done per unit charge: V = W/Q, linking Voltage with Energy.

Step 3: Detailed Explanation:
A simple mnemonic reinforces this permanently: Current and Charge both begin with 'C', while Voltage and Energy (Work) are conceptually paired since voltage is fundamentally defined as energy per coulomb. This keyword association—C with C, V with Energy—prevents the common exam mistake of incorrectly matching current to energy or voltage to charge.

Step 4: Final Answer:
Current pairs with Charge; Voltage pairs with Energy.