Suppose your car's headlights are turned on when you start the ignition. Will the headlights become dimmer or brighter while the car is starting ? Explain with proper reasoning .

Explanation

When you ingnite the starter motor it drawn a significant amount of current from battery while the car is starting . This in addition to internal resistance of the batteryh, will decrease its output below its nominal value. The currents in the headlights will thus decrease and hence, the headlights will become dimmer.