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Tutor HuntTest QuestionsPhysics QuestionsYear 10 Physics Questions

 

Resistors (GCSE Physics)

The following is a GCSE Physics test covering 'Resistors' from the broader topic Electricity. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

A 12 V battery is connected across a resistor and the current measured as 0.6 A. What is the resistance and what equation did you use?
Which effect will increasing temperature usually have on the resistance of a metal conductor?
A wire’s resistance depends on its length. If the length of a uniform wire is doubled while keeping other factors constant, what happens to its resistance?
Which factor decreases the resistance of a metal wire at constant temperature?
A student wants to reduce energy wasted as heat in transmission lines. Which approach is most effective?
A 5 O resistor dissipates 20 W of power. What is the current through it?
Two resistors, 4 O and 6 O, are connected in parallel. What is the total resistance?
Why does a metal resistor behave approximately ohmic (V ? I) only over a limited range?
Using P = I^2 R, if current doubles through a resistor, how does the power change?
A copper wire and a nichrome wire have same length and diameter. Which has higher resistance and why?
A circuit has two identical resistors in parallel across a battery. What is the effect on total current if one resistor is removed (open-circuited)?