The frequency of alternating current in China is ~ Hz

The frequency of alternating current in China is ~ Hz

fifty

When an alternating current passes through a 10 ohm resistance, the heat generated in 10 minutes is
How much heat is generated in 10 minutes when a current with a RMS value of 10 a passes through a resistance with a resistance value of 10 ohm?

t=10min=600s
Q=I^2*rT=10*10*10*600=6*10^5j

In a circuit, keeping the voltage U constant, the current I is inversely proportional to the resistance R. when the resistance R = 5, the current I = 2

I = u / R in this example, u = R * I = 5 * 2 = 10, so the final function is I = 10 / R

Seeking the symbol of physics circuit diagram in junior high school

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