2016 · Q45
Let a resistor having 4 ohm resistance be connected across the terminals of a 12 volt battery. Then the charge in coulomb passing through the resistor per second is:
general-sciencephysics-light-electricity
- A12
- B4
- C3
- D0.33
Explanation
Current I = V/R = 12/4 = 3 amperes. One ampere is one coulomb per second, so 3 coulombs pass through the resistor every second. Hence the charge per second is 3 coulombs.