PractiseQuestion bank
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12 questions
SA-9702-DC1-0012 marksL1 FoundationCalculatorInternal resistance
A cell of e.m.f. 1.5 V and internal resistance 0.50 Ω is connected to a 2.5 Ω resistor. Calculate the current. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0021 markL1 FoundationCalculatorInternal resistance
For the cell in the previous question (I=0.50 A through 2.5 Ω), calculate the terminal p.d. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0041 markL1 FoundationCalculatorV–I graph of a cell
On a graph of terminal p.d. V against current I for a cell, the gradient equals Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0061 markL1 FoundationCalculatorInternal resistance
A high-resistance voltmeter connected directly across a cell with no other circuit reads approximately
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0121 markL1 FoundationCalculatorInternal resistance
The "lost volts" in a cell are
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0032 marksL2 StandardCalculatorInternal resistance
A battery's terminal p.d. is 9.0 V on open circuit and 8.4 V when it supplies a current of 1.2 A. Calculate its internal resistance. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0051 markL2 StandardCalculatorV–I graph of a cell
A cell has e.m.f. 6.0 V and internal resistance 1.5 Ω. Calculate the short-circuit current. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0072 marksL2 StandardCalculatorInternal resistance
A battery of e.m.f. 12 V and internal resistance 0.40 Ω supplies a current of 5.0 A. Calculate the terminal p.d. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0082 marksL2 StandardCalculatorInternal resistance
A cell of e.m.f. 1.5 V and internal resistance 0.50 Ω drives 0.50 A. Calculate the power dissipated inside the cell. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0091 markL2 StandardCalculatorInternal resistance
A source has internal resistance 2.0 Ω. State the external resistance that receives the maximum power from it. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0101 markL2 StandardCalculatorInternal resistance
As the current drawn from a battery increases, its terminal p.d.
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DC1-0113 marksL3 ExamCalculatorV–I graph of a cell
A cell gives a terminal p.d. of 1.40 V at 0.20 A and 1.10 V at 0.80 A. Calculate its e.m.f. Salam Academy Original Practice · Proposed mark scheme