At a voltage of 1.2 kA, the current in the circuit of one of the TV units is 50 mA, which is the resistance of the circuit of this unit.
| February 3, 2021 | education
Data: U (operating voltage) = 1.2 kV (1200 V); I (current in the circuit of one of the used TV units) = 50 mA (0.05 A).
To calculate the circuit resistance of the used television unit, we apply Ohm’s law for the circuit section: R = U / I.
Calculation: R = 1200 / 0.05 = 24 * 10 ^ 3 Ohm (24 kOhm).
Answer: The circuit of the TV unit used has a resistance of 24 kOhm.
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