Answered

IDNLearn.com helps you find the answers you need quickly and efficiently. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

Electric circuits Grade 12
FSDOE 2014
Question 9
In the circuit represented below, the battery has an emf of 10 V and an unknown internal
resistance. Voltmeter V₁ is connected across the battery and voltmeter V2 is connected across the
open switch S. The resistance of the connecting wires and ammeter can be ignored.
V₁
emf = 10 V; r = ?
6 Ω
3 Ω
1Ω
Switch S is open.
9.1
What is the reading on V₁?
9.2
What is the reading on V₂?
V2
When switch S is closed, the reading on V₁ drops to 7,5 V.
9.3
What is the reading on V₂?
9.4
Calculate the reading on the ammeter.
9.5
Calculate the internal resistance of the battery.

9.6)Switch S is still closed,the 6 ohms resistor is removed:
what will happen to V1 reading?write down decrease,increase,remains the same.Explain your answer​

Sagot :

Answer:

Electric circuits Grade 12

FSDOE 2014

Question 9

In the circuit represented below, the battery has an emf of 10 V and an unknown internal

resistance. Voltmeter V₁ is connected across the battery and voltmeter V2 is connected across the

open switch S. The resistance of the connecting wires and ammeter can be ignored.

V₁

emf = 10 V; r = ?

6 Ω

3 Ω

1Ω

Switch S is open.

9.1

What is the reading on V₁?

9.2

What is the reading on V₂?

V2

When switch S is closed, the reading on V₁ drops to 7,5 V.

9.3

What is the reading on V₂?

9.4

Calculate the reading on the ammeter.

9.5

Calculate the internal resistance of the battery.

9.6)Switch S is still closed,the 6 ohms resistor is removed:

what will happen to V1 reading?write down decrease,increase,remains the same.Explain your answer

Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.