4.3.2. Series and parallel circuits
A subsection of Physics, 5054, through 4. Electricity and magnetism
Listing 10 of 49 questions
shows a circuit with two resistors in series. V 6 V 800 Ω 1600 Ω Calculate the current in the circuit. current = ……………………… Calculate the reading on the voltmeter. voltmeter reading = …………………… and show circuits containing a capacitor and a transistor respectively. V high resistance capacitor open switch open switch transistor EITHER Explain the action of the capacitor shown in when the switch is closed. OR Explain the action of the transistor shown in when the switch is closed.
5054_s10_qp_21
THEORY
2010
Paper 2, Variant 1
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shows part of a low-voltage lighting circuit. A 12 V B C The power supply voltage is 12 V. On , complete the circuit, adding components as necessary, so that: • the total current in the circuit can be measured, • lamp A is on all the time, • lamps B and C are in series with each other and are switched on or off together. All the lamps are on. The potential difference (p.d.) across lamp B is 8.0 V and the current in lamp B is 50 mA. Calculate the resistance of lamp B. resistance = State the current in lamp C. current =
5054_s11_qp_22
THEORY
2011
Paper 2, Variant 2
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Questions Discovered
49