Questions
A milliammeter of range 10 mA and resistance is joined in a circuit as shown in Fig. The meter gives full-scale deflection for current I when A and B are used as its terminals. If current enters at A and leaves at B (C is left isolated), the value of I is
detailed solution
Correct option is C
ig=10mA = 0.01 A VA− VB= I − ig 0.1 = ig9 + 0.9I=10×0.010.1=1ATalk to our academic expert!
Similar Questions
A moving coil galvanometer converted into an ammeter reads up to 0.03 A by connecting a shunt of resistance 4r across it and ammeter reads up to 0.06 A, when a shunt of resistance r is used. What is the maximum current which can be sent through this galvanometer if no shunt is used?
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