In the circuit below, X and Y are identical 6V lamps.
What happens when the switch is closed?

1 )
X lights more brightly than Y.
2 )
Y lights more brightly than X.
X and Y light with equal brightness.
4 )
Neither X nor Y light.
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!