What work does the electric drill do every second if, at a voltage of 220V, the current is 4A.

The work of an electric drill can be expressed through the formula:
A = U * q, where U is the value of the electric voltage (U = 220 V), q is the value of the electric charge flowing through the conductor.
The charge itself is: q = I * t, where I is the current strength (4 A), t is the time during which the charge flows through the conductor (t = 1 s).
Then A = U * q = U * I * t = 220 * 4 * 1 = 880 J.
Check: J = B * A * c = m ^ 2 * kg * c ^ -3 * A ^ -1 * A * c = m ^ 2 * kg * c ^ -2 = H * m = J.
Answer. The electric drill performs work at 880 J every second.



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