1. Which of the following answers gives the ideal characteristics for voltmeters and ammeters?
|2. Which of these is the definition of e.m.f in a circuit?
3. A circuit is set up to investigate the I-V characteristics of a bulb . Which of these shows the correct arrangement of the components?
|4. The graph shows how the current varies in an unknown component.
At x, the tangent T has a gradient of m.
The resistance of the component at x is:
Q5+6. These 4 resistor networks are made using identical resistors.
|5. Which network above has the highest resistance?
|6. The 4 networks above are connected to 4 identical cells. Which would have the largest total current flowing through it ?
7. Which of the graphs below best describes the terminal voltage output of a typical cell as it is completely discharges through a fixed resistor?
|8. A resistor of resistance R is connected with a cell of e.m.f. E and negligible internal resistance. The total power dissipated in the resistor is P. What would be the total power dissipated if the resistance have a value of 2R and the cell has an e.m.f. of 2E?