A milliammeter of range $10\, mA$ and resistance $9\, \Omega$ is joined in a circuit as shown. The meter gives full-scale deflection for current $I$ when $A$ and $B$ are used as its terminals, i.e., current enters at $A$ and leaves at $B$ ($C$ is left isolated). The value of $I$ is
Medium
Download our app for free and get started
$i_{g}=10 m A=0.01 A$
$V_{A}-V_{B}=\left(I-i_{g}\right) 0.1=i_{g}(9+0.9)$
or $I=\frac{10 \times 0.01}{0.1}=1 A$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1The equivalent resistance between $A$ and $B$ isView Solution
- 2What is the current $(i)$ in the circuit as shown in figure ........... $A$View Solution
- 3For which of the following dependence of drift velocity $v$ on electric field $E$ is ohm's law obeyedView Solution
- 4The measurement of ammeter in the following circuit is ................... $A$ (Assuming ideal ammeter)View Solution
- 5In the circuit shown in Figure the ammeter reads a current ............. $A$View Solution
- 6Find the value of current $i_1$ for the circuit shown in figure :- ............ $A$View Solution
- 7A battery having $e.m.f.$ $5\,\,V$ and internal resistance $0.5$ $\Omega$ is connected with a resistance of $4.5 \,\Omega$ then the voltage at the terminals of battery is ............. $V$View Solution
- 8The drift velocity of free electrons in a conductor is ‘$v$’ when a current ‘$i$’ is flowing in it. If both the radius and current are doubled, then drift velocity will beView Solution
- 9Three identical cells are connected in parallel across $A B$. Net emf across $A B$ is .......... $V$View Solution
- 10In the figure shown, what is the current (in Ampere) drawn from the battery ? You are given $R_1 = 15\,\Omega $$,R _2 = 10\,\Omega ,$$ R_3 = 20\,\Omega ,$$ R_4 = 5\,\Omega ,$$R_5 = 25\,\Omega ,$$R_6 = 30\,\Omega , $$E = 15\,V$View Solution
