All Problems

Electric Current

Problem 3.199

A capacitor of capacitance C=5.00μFC=5.00 \mu \mathrm{F} is connected to a source of constant emf E=200 V\mathscr{E}=200 \mathrm{~V} (Fig. 3.55). Then the switch Sw was thrown over from contact 1 to contact 2 . Find the amount of heat generated in a resistance R1=500ΩR_{1}=500 \Omega if R2=330ΩR_{2}=330 \Omega.

Reveal Answer
Q=i/2CE2R1/(R1+R2)=60 mJQ=\mathrm{i} /{ }_{2} C \mathscr{E}^{2} R_{1} /\left(R_{1}+R_{2}\right)=60 \mathrm{~mJ}