Answer: V/R.
- A V/R
- B V/C
- C Zero
- D Infinity
Correct answer: A. V/R
Explanation: At t=0, capacitor is uncharged (V<sub>C</sub>=0). All voltage across R. Initial current = V/R. Current decays as C charges.
In series, the same current flows through both resistors; in parallel, the current splits between branches and the voltage across each resistor is the same.
Concept context
Ohm's law, resistors, Kirchhoff's laws, Wheatstone bridge, and cells.