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CAPE Physics Unit 2 · 2001 · Paper 2 · Question 4(b)(i)

Circuit with multiple sources and parallel branches.

State Kirchhoff's laws.

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  1. 4(a)(i)Define the volt, and use this definition to derive the relationship P = IV.[4 marks]
  2. 4(a)(ii)An electric heater element has resistance 7.90 Ω and an applied potential difference of 115 V. Determine the current in the wire and the power used by the…[6 marks]
  3. 4(b)(ii)In Figure 1, a battery of e.m.f. 12.0 V and internal resistance 0.011 Ω powers a lamp of resistance 1.20 Ω, while being charged by a charger of e.m.f. 14.0 V…[7 marks]

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