Question

2 A sensor uses 5*10-3A of current when it is operated by a 5.0-V battery. What is the resistance of the sensor circuit?

Answer 1

$10^{3}Ω$ or 1000 Ohms

Explanation:-

The relationship between current, voltage and resistance is given by Ohms Law.

$V=IR$

where

V = Voltage

I = Current

R = Resistance

Now in our case, we are told that,

V = 5.0 V

I = 5×$10^{ - 3}$amperes

Therefore, the above equation gives

$5.0 = (5 \times {10}^{ - 3})R$

Dividing both sides by 5×$10^{ - 3}$ gives,

R = 5.0 ÷ 5×$10^{ - 3}$

=> R = $10^{3}Ω$

Hence, the resistance of the sensor circuit is $10^{3}Ω$ or 1000 Ohms

~ Benjemin360