Physics: Three resistors, 21 ω, 58 ω, and 64 ω, are connected in series, and a 0.50-a current passes through them. what are (a) the equivalent resistance and (b) the potential difference across this equivalent resistance?

Three resistors, 21 ω, 58 ω, and 64 ω, are connected

hopeeast8

13.01.2022

a) Equivalent resistance is 143 Ωb) Potential difference is 71.5 V

Explanation:

When resistors are connected in series, effective resistance is given by

$R_{eff}=R_1+R_2+R_3+......$

Here

R₁ = 21Ω

R₂ = 58Ω

R₃ = 64Ω

a) $R_{eff}=R_1+R_2+R_3\\\\R_{eff}=21+58+64\\\\R_{eff}=143\Omega$

Equivalent resistance is 143 Ω

b) We know

Potential difference = Current x Resistance

V = IR

I = 0.5 A

R = 143Ω

Substituting

V = 0.5 x 143 = 71.5 V

Potential difference is 71.5 V

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mgreer432

29.07.2022

Quantity with direction and magnitude

Displacement

Explanation:

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