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प्रश्न
Which one of the following is the correct set-up for studying the dependence of the current on the potential difference across a resistor and why?
उत्तर
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संबंधित प्रश्न
Name a device that helps to maintain a potential difference across a conductor.
Calculate the quantity of heat produced in a 20 Ω resistor carrying 2.5 A current in 5 minutes.
What is the unit of electric charge?
How much energy is transferred by a 12 V Power supply to each coulomb of charge which it moves around a circuit?
What is a voltmeter?
What would you suggest to a student if while performing an experiment he finds that the pointer/needle of the ammeter and voltmeter do not coincide with the zero marks on the scales when the circuit is open? No extra ammeter/voltmeter is available in the laboratory.
Three resistors are connected to a 12 V battery as shown in the figure given below:
(i) What is the current through the 8 ohm resistor?
(ii) What is the potential difference across the parallel combination of 6 ohm and 12 ohm resistor?
(iii) What is the current through the 6 ohm resistor?
Name the instrument which is used to measure the potential difference.
______ is work done per unit charge.
