Download P6b Potential divider calculations

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P6b - Potential divider calculations
1
a Calculate the output voltage between A and B for the potential divider below.
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b The 100 Ω resistor is replaced by another so that the output voltage between A and B
is 1.5 V. Calculate the resistance value needed.
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c What would the output voltage be if, in the original circuit, another 200 Ω resistor was
placed in parallel with the one shown?
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e
2
a Complete the table, which refers to the circuit below.
VIN (V)
R1 (Ω)
6
600
400
40
9000
15 000
40
120
18
1000
3
12
R2 (Ω)
VOUT (V)
b Give two ways in which a variable output can be obtained without setting up a new
circuit each time.
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