Value of the resistance $R$ in the figure is .......... $\Omega$
A$6$
B$8$
C$10$
D$12$
Easy
Download our app for free and get started
A$6$
a (a)
$0-2(1)+12-1(R)-4(1)=0$
$6-R=0$
$R=6 \,\Omega$
Download our app
and 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.*
In an experiment, a graph was plotted of the potential difference $V$ between the terminals of a cell against the circuit current $i$ by varying load rheostat. Internal conductance of the cell is given by
There are $8$ equal resistances $R$. Two are connected in parallel, such four groups are connected in series, the total resistance of the system will be
A voltmeter is connected in parallel with a variable resistance $R$ which is in series with an ammeter and a cell as shown in the figure. For one value of $R$, the meters read $0.3 \,A$ and $0.9 \,V$. For another value of $R$ the readings are $0.25 \,A$ and $1.0 \,V$. What is the internal resistance of the cell is ......... $\Omega$
A charged particle having drift velocity of $7.5 \times 10^{-4}\, ms ^{-1}$ is an electric field of $3 \times 10^{-10}\, Vm ^{-1}$ has a mobility in $m ^{2} V ^{-1} s ^{-1}$ of
By error, a student places moving-coil voltmeter $V$ (nearly ideal) in series with the resistance in a circuit in order to read the current, as shown. The voltmeter reading will be ............ $V$