Question

A student arranged an electric circuit as shown below :
• Ii(
He will observe :
(A) no reading in either ammeter or the voltmeter
(B) no reading in voltmeter, but a finite reading in the ammeter
(C) no reading in the ammeter, but a finite reading in the voltmeter
(D) a finite reading in both the ammeter and the voltmeter


CBSE Class X Science VSA (1 Mark)

Answer 1

(B) Question is ambiguous. Use of (.) for key will create contusion. It is not given whether the keys are dosed or not If key I< is dosed and the other key in the main circuit is dosed, both the meters

will work. Otherwise, considering the key to be open, voltmeter will shmv no reading.