Question

Three resistances, 2 Ω, 6 Ω and 8 Ω are connected in parallel, then the equivalent resistance is (a) less than 6 Ω but more than 2 Ω (b) less than 8 Ω but more than 6 Ω (c)less than 2 Ω (d) more than 8 Ω​

Answer 1

Answer:

some things wrong with your ans man

Explanation:

1.26 ohm which is c option

Answer 2

The equivalent resistance is less than 2 Ω, So the correct option is (c) less than 2 Ω.

The equivalent resistance of the three resistances connected in parallel can be calculated using the formula:

$1/Req = 1/R1 + 1/R2 + 1/R3 + ...$

where Req is the equivalent resistance and R1, R2, R3, etc. are the individual resistances.

In this case:

$1/Req = 1/2 + 1/6 + 1/8$

$Req = (2 + 6 + 8) / (268)$

$Req = 16 / 96$

$Req = 1/6$

Req = 0.1666 Ω

So the equivalent resistance is less than 2 Ω, So the correct option is (c) less than 2 Ω.

• Equivalent resistance, also known as total resistance or overall resistance, is a measure of the total opposition to the flow of electric current in a circuit. It is the single resistance value that can be used to represent the entire circuit in terms of its effect on current.

• When resistances are connected in series, the equivalent resistance is simply the sum of all the individual resistances.

• When resistances are connected in parallel, the equivalent resistance is calculated using the formula:$1/Req = 1/R1 + 1/R2 + 1/R3 + ...$

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