Question

Given a circuit consisting of a DC battery of voltage 450 volts connected to a single resistor. If the electric current through the resistor is 90.0 Amperes, then which of these is the resistance of the resistor in SI units? A)15 B)25 C)20 D)5 E)0.2

Answer 1

`D)5`

Step-by-step explanation

Parameters given:

Voltage, V = 450 V

Current, I = 90.0 A

To find the resistance, we have to apply the relationship provided by Ohm's law:

`V=IR`

where R = resistance

Therefore, the resistance is:

`\begin{gathered} R=(V)/(I) \\ R=(450)/(90) \\ R=5\Omega \end{gathered}`

The answer is option D.