PH-1211
Combining resistors
Physics · Secondary 4 · Medium · Combining resistors
A student wants to plot the I–V characteristic of a diode using a 1.5 V cell and a variable resistor. Which change will allow a wider range of current values to be obtained?
- Use a variable resistor with a larger maximum resistance
- Use a cell with a smaller voltage
- Connect the voltmeter in series with the diode
- Reverse the ammeter connections
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