Question 1

In a circuit, if resistor $$R_7$$ increases and there is no resistance in branches $$@$$ and $$é$$, what happens to the potential difference between points A and E?

Accepted Answer

It stays the same

Question 2

If $$R_7$$ increases and branches $$@$$ and $$é$$ have resistance, what happens to the potential difference between points A and E?

Accepted Answer

It increases

Question 3

What happens to the voltage drop across $$R_a if$$ $$R_7$$ increases?

Accepted Answer

It increases

Question 4

If $$R_z$$ decreases, what happens to the current through $$R_z$$?

Accepted Answer

It increases

Question 5

If $$R_y$$ decreases, what happens to the current through $$R_e$$?

Accepted Answer

It increases

Question 6

If $$R_o$$ decreases, what happens to the current through $$R_3$$?

Accepted Answer

It increases

Question 7

If $$R_s$$ increases, what happens to the voltage drop across $$R_z$$?

Accepted Answer

It increases

Question 8

If $$R_s$$ increases, what happens to the voltage drop across $$R_a$$?

Accepted Answer

It decreases

Question 9

If $$R_o$$, $$R_s$$, and $$R_7$$ all increase and $$r = 0$$, what happens to the total resistance in the circuit?

Accepted Answer

It increases

Question 10

A real-world scenario: In a medical device circuit, if the resistance of a sensor ($$R_7) $$increases due to wear, and the device is designed with negligible resistance in connecting wires, what is the effect on the voltage measured across the sensor?

Accepted Answer

The voltage stays the same

Question 11

Consider a circuit where $$R_y$$ and $$R_e$$ are in series. If $$R_y is $$replaced with a lower resistance, what happens to the current through $$R_e$$?

Accepted Answer

It increases

Question 12

In a parallel circuit, if $$R_o$$ decreases, what happens to the total current supplied by the source?

Accepted Answer

It increases

Question 13

If $$R_s$$ increases in a series circuit, what happens to the voltage drop across $$R_z$$ assuming the total voltage is constant?

Accepted Answer

It increases

Question 14

A circuit has resistors $$R_a$$ and $$R_z in $$series. If $$R_s$$ increases, what happens to the voltage drop across $$R_a$$?

Accepted Answer

It decreases

Question 15

If the resistance in all branches ($$R_o$$, $$R_s$$, $$R_7) $$increases and the internal resistance $$r = 0$$, what happens to the current in the circuit?

Accepted Answer

It decreases

Question 16

In a practical scenario, a circuit designer wants to increase the voltage drop across $$R_z$$ without changing the total voltage. Which resistor should they increase?

Accepted Answer

Increase $$R_s$$

Question 17

If $$R_7$$ increases in a circuit with resistance in branches $$@$$ and $$é$$, what is the effect on the total current in the circuit?

Accepted Answer

It decreases

Question 18

A circuit has $$R_z$$ and $$R_s in $$series. If $$R_z$$ decreases, what happens to the voltage drop across $$R_s$$?

Accepted Answer

It increases

Question 19

If $$R_3 is in $$parallel with $$R_o$$, and $$R_o$$ decreases, what happens to the current through $$R_3$$?

Accepted Answer

It stays the same

Question 20

In a circuit, if $$R_s$$ increases and the total voltage is constant, what happens to the total current in the circuit?

Accepted Answer

It decreases

Analyzing How Changes in Resistance Affect Circuit Quantities

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