Question

an 100 ohm electric iron is connected to a 200volt and 50 hertz ac source calculate the average power delivered to iron , peak power and energy spent in one minute?​

Answer 1

Answer:

• Average Power = 400 Watts.
• Peak Power = 20000 watts
• Energy Spent = 24000 Joules.

Explanation:

Solution:-

Firstly we calculate the Average power of electric iron.

Using Formula

• Av. Power = V²/R

Where,

• V denote voltage
• R denote Resistance

Substitute the value we get

→ Av. Power = 200²/100

→ Av. Power = 200×200/100

→ Av. Power = 2×200

→ Av.Power = 400 W

• Hence, the average power delivered by iron is 400 watts.

Now, Calculating the Peak Power

• Peak Power = 400 × 50

→ Peak Power = 20000 W.

• Hence, Peak Power is 20000 Watts.

And, Calculating the Energy Spent

• Energy Spent = Power× time

→ Energy Spent = 400 × 60

→ Energy Spent = 24000 J

• Hence, Energy spent in one minute is 24000 Joules.

Answer 2

Answer:

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