The resistors of values 6 Ω, 6 Ω are connected in series and 12 Ω are connected in parallel
The equivalent resistance of the circuit is [ ]
a) 24 Ω b) 6 Ω
c) 18 Ω d) 2.4 Ω
The current in the wire depends [ ]
a) only on the potential difference applied b) only on the resistance of the wire
c) on both of them d) none of them
Suggested Experiments
State Ohm’s law. Suggest an experiment to verify it and explain the procedure. (AS3)
How do you verify that resistance of a conductor is proportional to the length of the conductor for constant cross section area and temperature? (AS3)
Suggested Projects
Take a battery and measure the potential difference. Make a circuit and measure the potential
difference when the battery is connected in the circuit. Is there any difference in potential
difference of battery? (AS4)
Measure the resistance of a bulb (filament) in open circuit with a multi-meter. Make a
circuit with elements such as bulb, battery of 12V and key in series. Close the key. Then
again measure the resistance of the same bulb (filament) for every 30 seconds. Record the
Observations in a proper table. What can you conclude from the above results? (AS4)
Calculate the resistance of verious bulbs that you use at your home and find which one is
having higher / lower resistance value. Write the report on your observations.
Collect the information and prepare a report on power consumption in your home / school.