Draw a circuit diagram for a circuit consisting of a battery of five cells of $2$ volts each, a $5\, \Omega,$ resistor, a $10\, \Omega$ resistor and a $15 \,\Omega$ resistor, an ammeter and a plug key; all connected in series. Also, connect a voltmeter to record the potential difference across the $15\, \Omega$ resistor and calculate
$(i)$ the electric current passing through the above circuit and
$(ii)$ potential difference across $5\, \Omega$ resistor when the key is closed.
Draw a circuit diagram for a circuit consisting of a battery of five cells of $2$ volts each, a $5\, \Omega,$ resistor, a $10\, \Omega$ resistor and a $15 \,\Omega$ resistor, an ammeter and a plug key; all connected in series. Also, connect a voltmeter to record the potential difference across the $15\, \Omega$ resistor and calculate
$(i)$ the electric current passing through the above circuit and
$(ii)$ potential difference across $5\, \Omega$ resistor when the key is closed.
The diagram is as shown
The equivalent resistance of the series combination of $R _{1}, R _{2}$ and $R _{3}$ is
$R = R _{1}+ R _{2}+ R _{3}$
$=5+10+15=30$ $ohm.$
Therefore, current through the circuit is
$I=V / R=10 / 30=0.33 A$
Now, potential difference across $5 \Omega$ resistor is
$V=I R_{1}=0.33 \times 5=1.67 V$
Similar Questions
Calculate the equivalent resistance in the combination shown in figure below
Calculate the equivalent resistance in the combination shown in figure below
What happens to the resistance of a conductor when the length of the conductor is reduced to half ?
What happens to the resistance of a conductor when the length of the conductor is reduced to half ?
The potential difference across the terminals of a cell is $1.5$ volt. If it is connected with a resistance of $30$ $ohms$, calculate the current flowing through the circuit.
The potential difference across the terminals of a cell is $1.5$ volt. If it is connected with a resistance of $30$ $ohms$, calculate the current flowing through the circuit.
$A$ hot plate of an electric oven, connected to a $200 \,V$ line. It has two resistance coils $A$ and $B$ each of the $30\, \Omega$ which may be used separately, in series or in parallel. Find the value of the current required in each of the three cases.
$A$ hot plate of an electric oven, connected to a $200 \,V$ line. It has two resistance coils $A$ and $B$ each of the $30\, \Omega$ which may be used separately, in series or in parallel. Find the value of the current required in each of the three cases.
When is potential difference between two points said to be $1$ volt ?
When is potential difference between two points said to be $1$ volt ?