Question

4. Яка кількість теплоти виділиться у волоску розжарювання електричної лампи протягом 1 год, якщо за напруги 110 В через волосок проходить струм 1 А?​

Answer 1

Ответ:

R=u/i=110 Ом

Q=i^2Rt= 1*110*3600=396Кдж.

Відповідь: В

Answer 2

Calculation of Heat Energy Released by Electric Lamp

To calculate the heat energy released by the electric lamp, we can use the formula:

Heat energy (Q) = Power (P) × Time (t)

Where: - Power (P) is the product of voltage (V) and current (I), i.e., P = V × I - Time (t) is given as 1 hour

Calculation Steps

1. Calculate the power (P) using the formula P = V × I 2. Use the calculated power to find the heat energy (Q) using the formula Q = P × t

Calculation

Given: - Voltage (V) = 110 V - Current (I) = 1 A - Time (t) = 1 hour

1. Calculate Power (P) - P = V × I - P = 110 V × 1 A - P = 110 W

2. Calculate Heat Energy (Q) - Q = P × t - Q = 110 W × 1 hour - Q = 110 watt-hours (Wh)

So, the heat energy released by the electric lamp over 1 hour is 110 watt-hours (Wh).