7. (18 points total) All bulbs and all batteries are identical. (4 pts) Circle t

Question

7. (18 points total) All bulbs and all batteries are identical. (4 pts) Circle the correct answer. The voltage measured across the battery in the circuit to the right is (less than) (the same as) (greater than) the voltage across the battery in the circuit to the left. (3 pts) Explain your answer to (a) a) b) c) (4 pts) Circle the correct answer. The current produced by the battery in the circuit to the right is (less than) the same as) (greater than) the current produced by the battery in the circuit to the left. d) (3 pts) Explain your answer to (c). e) (4 pts) Circle the correct answer. For the circuit on the left, an amount of current In leaves the battery and flows into the bulb, and the bulb grows brightly. The amount of current l-that flows out of the bulb is (zero) (less than Iin but not zero) (the same as In) (greater than ) 8. (6 pts) Use the following symbols for a voltage probe (voltmeter) and a current probe (ammeter). Redraw below the circuit on the left in the previous question, adding these symbols to show how you would measure the voltage across the battery and the current produced by the battery Page 4 of 5

Explanation / Answer

If r= internal resistance of the battery, then voltage across the battery = emf of the battery - potential drop across the battery

= emf of the battery - current x r

Out of the both cases, current in the circuit to the right is less than that of the left because the total resistance of the circuit to the right is more than that of the circuit to the left.

a. So potential drop in the circuit to the right is less than that of the left. Hence,the voltage measured across the battery in the circuit to the right is greater than the voltage measured across the battery in the circuit to the left.

b. explained in the above paragraph.

c. The current produced by the battery in the circuit to the right is less than the current produced by the battery in the circuit to the left.

d. explaned in above.

e. The amount of the current flowing out of the bulb Iout is same as Iin ( the current flowing in the bulb).

all the best in the course work

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.