What will happen to the current in a circuit, if its resistance is doubled ?
What will happen to the current in a circuit, if its resistance is doubled ?
The current becomes half.
Similar Questions
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.
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Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of $2\,\Omega $ in series with a combination of two resistors ($4\,\Omega $ each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the $2\,\Omega $ resistor be the same as that across the parallel combination of $4\,\Omega $ resistors? Give reason.
Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of $2\,\Omega $ in series with a combination of two resistors ($4\,\Omega $ each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the $2\,\Omega $ resistor be the same as that across the parallel combination of $4\,\Omega $ resistors? Give reason.
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