In the following circuit, a voltmeter 
is connected across a lamp 
. What change would occur in voltmeter reading if the resistance 
is reduced in value
.png)
a)
Increases
b)
Decreases
c)
Remains same
d)
None of these
is connected across a lamp . What change would occur in voltmeter reading if the resistance is reduced in valuea)
Increases
b)
Decreases
c)
Remains same
d)
None of these
Question ID - 151967 | SaraNextGen Top Answer In the following circuit, a voltmeter is connected across a lamp . What change would occur in voltmeter reading if the resistance is reduced in value
a)
Increases
b)
Decreases
c)
Remains same
d)
None of these
In the following circuit, a voltmeter is connected across a lamp . What change would occur in voltmeter reading if the resistance is reduced in value
|
a) |
Increases |
b) |
Decreases |
c) |
Remains same |
d) |
None of these |
|
(a) Here the emitter base junction of |
-
-
transistor is forward biased with battery 
through resistance 
. When the value of 
is reduced, then the emitter current 
will increase. As a result the collector current will also increase. (
). Due to increase in 
, the potential difference across 
increases and hence the reading of voltmeter will increases