B1,B2and B3 are the three identical bulb connected as shown in the figure. Ammeter À1,A2 and A3 are connected shown in the figure.when all the bulb glow,then the current of 3 A is recorded by ammeterA. What happened to the reading of A1 ,A2 when the bulb are Vw gets fused?

Question

Answer

I think your question is incomplete because you did not upload the required figure for this question.So, upload the required figure.

Answer

Ok but where is the Figure

Answer

Dear...but where is ur question's figure...

Answer

Where is figure?

Answer

Actually I am not seeing you required image

Answer

Https://www.toppr.com/ask/question/what-happens-to-the-reading-of-a1-a2-a3-and-a-when-the-bulb-b2/

Answer

Where is the figure???

Answer

Hey listen where Is the required figure for this question

Answer

Explanation:

When all three bulbs B1, B2, and B3 are glowing, the current of 3A is recorded by ammeter A. However, if one of the bulbs, let's say B2, gets fused, it will affect the current and the readings of ammeters A1 and A2.

Reasoning:

When all three bulbs are connected in parallel, the current passing through each bulb is the same. Therefore, each bulb receives 1A of current when all three bulbs are glowing. This means that ammeter A records a total current of 3A.

Now, if bulb B2 gets fused, it will create an open circuit in that branch. This will result in an increase in resistance in the circuit, as the resistance of the fused bulb becomes infinite.

Effect on Ammeter A1:

When bulb B2 gets fused, the resistance in the branch containing B2 increases. As a result, the total resistance of the circuit increases. According to Ohm's Law (V = IR), if the resistance increases, the current decreases if the voltage remains constant.

Since the voltage across the circuit remains constant, the decrease in current will be distributed across the remaining bulbs B1 and B3. Therefore, the current passing through B1 and B3 will decrease, and consequently, the current recorded by ammeter A1 will also decrease.

Effect on Ammeter A2:

Similarly, when bulb B2 gets fused, the resistance in the branch containing B2 increases, resulting in an increase in the total resistance of the circuit. This increase in resistance will cause a decrease in the current passing through the circuit.

Since ammeter A2 is connected in series with bulb B2, it measures the current passing through B2. Therefore, when B2 gets fused, the current passing through B2 becomes zero, and ammeter A2 will record a current of zero.

Summary:

- When one of the bulbs, B2, gets fused, it creates an open circuit in that branch, increasing the resistance of the circuit.
- The increase in resistance causes a decrease in the total current passing through the circuit.
- As a result, the current passing through bulbs B1 and B3 also decreases.
- Ammeter A1, which measures the current passing through B1, will record a decreased current.
- Ammeter A2, which measures the current passing through B2, will record zero current since B2 is fused.

Similar Class 10 Doubts

Five resistors are connected in a circuit as shown. Find the ammeter reading when circuit is closed?

26. The current flowing through a resistor connected in an electrical circuit and the potential difference developed across its ends are shown in the given ammeter and voltmeter. Find the least count of the voltmeter and ammeter .What is the voltage and the current across the given resistor?

How is an ammeter connected in the circuit to measure the current flowing through a resistor?

Which of them will show correct reading if voltameter is connected in parallel to ammeter connected in series in a circuit?

How do we connect voltmeter and ammeter in a circuit ? What is likely to happen if the positions of these instruments are changed?

Top Courses for Class 10View all

Science Class 10

Social Studies (SST) Class 10

Mathematics (Maths) Class 10

English Grammar Advanced

English Grammar Basic

Top Courses for Class 10

Top Courses for Class 10

Suggested Free Tests

Related Content

About Class 10

Class 10 Study Material

Class 10 All Subjects

NCERT Textbook Solutions

Other Classes

Important Links

Company