A silicon p-n junction diode whose knee voltage is `0.7 V` is connected to a battery with supply voltage `3V` and `100mA` in forward biasing. If a resistor R is used in series of the circuit, then a current of 20mA passes through the diode. Find the wattage of the resistor and of the diode.

Explanation

To solve the problem step by step, we will calculate the wattage of the resistor and the diode in the given circuit.

### Step 1: Identify the given values
- Knee voltage of the diode, \( V_k = 0.7 \, V \)
- Supply voltage from the battery, \( V_s = 3 \, V \)
- Current through the diode, \( I = 20 \, mA = 20 \times 10^{-3} \, A \)

### Step 2: Calculate the voltage drop across the resistor
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