Question

Match the given circuits with correct value of unknown quantities in SI units:

• A. 2 units
• B. 4 units
• C. 60 units

Answer 1

The mathematical form of Ohm's law is given by V = IR.
Substituting values of known quantities in each case, the unknowns can be calculated as:

1. V = I $\times$ R = 15 $\times$ 4 = 60 V

2. R = $\frac{V}{I}$ = $\frac{20}{5}$ = $4\Omega$

3. I = $\frac{V}{R}$ = $\frac{20}{10}$ = 2 A