A resistor of 8 ohm is connected in parallel

Asked by admin @ 20/08/2021 in Physics viewed by 371 People

A resistor of 8ohm is connected in parallel with another resistor X. The resulant resistance of the combination is 4.8ohm. What is the value of X ?

Answered by admin @ 20/08/2021

Given that two resistance R1 and R2 are connected in parallel.

So resultant resistant = 1/ R= 1/R1+1/R2
Here
R=4.8 ohms
R1= 8ohms
R2= X ohms

1/4.8 =1/8+1/X
10/48 = 8+x/8x
10(8x) =(8+x)48

80x=8x48 +48x

80x-48x=384

32x=384

x=384/32

x=12 ohms

∴ The value of X is 12ohms

When a resistance of 2 ohm is connected

Asked by admin @ 26/08/2021 in Physics viewed by 334 persons

when a resistance of 2 ohms is connected across the terminals of a cell the current is 0.5 amperes,when the resistance is increased to 5 ohms, the current is 0.25 …

Current through 10 ohm resistor shown in figure is

Asked by admin @ 16/08/2021 in Physics viewed by 291 persons

C-8. Find the current through the 10 ohm resistor shown in figure(A) zero(B) 1 A(C) 2A(D) 5 A

The value of current through 2 ohm resistor is

Asked by admin @ 13/08/2021 in Physics viewed by 315 persons

Solution?? The value of current through 2 ohm resistor?

A 3 ohm resistor and a 6 ohm resistor

Asked by maham237 @ 13/01/2021 in Physics viewed by 332 persons

A 3-ohm resistor and a 6-ohm resistor are connected in parallel across a 9-volt battery. Which statement best compares the potential difference across each resistor? (1) The potential difference across …

Calculate the power dissipated in the 3 ohm resistor

Asked by admin @ 23/08/2021 in Physics viewed by 333 persons

Find the power dissipated through 3 ohm resistor

If the power dissipated in the 9 ohm resistor

Asked by admin @ 20/08/2021 in Physics viewed by 379 persons

The power dissipated in the 9 ohm resistor is the circuit shown is 36 watt the potential difference across the 2 ohm resistor is

Calculate the power used in the 2 ohm resistor

Asked by admin @ 17/08/2021 in Science viewed by 338 persons

Calculate the power used in the 2 ohm resistor in each of the following circuits: 1) a 4 V battery in parallel with 12 ohm and 2ohm resistors. 2) a …

Ammeter burns out when connected in parallel give reason

Asked by admin @ 11/08/2021 in Science viewed by 285 persons

Ammeter burns out when connected in parallel .give reasons?

Compare the power used in the 2 ohm resistor

Asked by admin @ 11/08/2021 in Physics viewed by 323 persons

Compare the power used in 2 ohm resistor in each of the following Circuits (1) a 6 V battery in series with 1 ohm and 2 ohm resistors, and (2) …

Why is ammeter likely to burn when connected in parallel

Asked by admin @ 06/08/2021 in Science viewed by 303 persons

Ammeter burns out when connected in parallel .give reasons?

How to tell if resistors are in series or parallel

Asked by admin @ 31/10/2021 in Physics viewed by 287 persons

How would I determine the equivalent resistance of two resistors in series or parallel with this technique? What was the resistance of the resistor in Part 1? Include your current-voltage …

A 12 ohm resistor and a 0.21 h inductor

Asked by admin @ 20/08/2021 in Physics viewed by 279 persons

A 12 ohm resistor and a 0.21 henry inductor are connected in series to an ac source operating at 20 volts, 50 cycle/ second. The phase angle between the current …

If power dissipated in the 9 ohm resistor

Asked by admin @ 29/08/2021 in Physics viewed by 363 persons

The power dissipated in the 9 ohm resistor is the circuit shown is 36 watt the potential difference across the 2 ohm resistor is

Three resistors 1 ohm 2 ohm and 3 ohm

Asked by admin @ 17/08/2021 in Physics viewed by 353 persons

Three resistors of 1 ohm ,2 ohm,3 ohm are connected in series with a battery of 12 V as shown in fig . Values of potential difference V1,V2,V3 across the …