Understanding Ohm's Law
Ohm's Law is a fundamental principle in electronics that relates voltage, current, and resistance. It can be expressed with the equation:
\[ V = I \times R \]
Where:
- **V** is the voltage in volts (V)
- **I** is the current in amperes (A)
- **R** is the resistance in ohms (Ω)

Given Values
To find the resistance, we can rearrange the formula:
\[ R = \frac{V}{I} \]
In this case:
- Voltage (V) = 27V
- Current (I) = 5A

Calculating Resistance
Now, substitute the given values into the rearranged formula:
- **Step 1:** Substitute the values into the formula:
\[ R = \frac{27V}{5A} \]
- **Step 2:** Perform the division:
\[ R = 5.4Ω \]

Conclusion
Thus, the resistance in the circuit is **5.4 ohms**.

Key Points to Remember
- **Ohm's Law** is crucial for understanding electrical circuits.
- Always ensure the units are consistent when using the formula.
- Resistance can be calculated easily using voltage and current values.
Understanding these concepts will enhance your grasp of electrical principles essential for UPSC and other examinations.