Question

1- Capacitor B has half of the
capacitor A. Compare the load
of capacitor A with capacitor B charge
when the two capacitors remain connected in series with a battery for a long
time.

2- A capacitor immersed in the air has
capacitance equal to 12.5 μF when the potential difference at its terminals is 24.0V. If we insert a constant material
dielectric equal to 3.75 between the capacitor plates, filling the space between them completely, (a) how much energy is stored
before and after insertion of the dielectric? (B)
After insertion of the dielectric the energy accumulated in the capacitor has increased or decreased?
Justify.

3- Two filament lamps
operate both with 110 V, but one of them has
a power specification of 40 W, while
whereas the other has a specification of 75
W. (a) Which lamp has the highest resistance?
(b) Which leads to the greatest current?

4- Copper wire is used with
straight section of 2.00 × 10-6m2
and length of
4.00 m in one section of an electric circuit.
Assuming that this wire is covered by a
current of 2.00 A uniformly distributed "
calculate: (a) the electric field modulus in
inside the wire and (b) the electrical energy that is
transformed into thermal energy in the wire at 30
min.

5- Suppose that a resistor is a
capacitor are connected in series to a battery. The value of the resistor will affect the
of charge that is stored in the capacitor? If
Yes, explain why. If not, what will be the
resistor effect?

6- In the electrical circuit below are
indicated the electromotive forces (emf) of the
batteries as well as their internal resistances.
As can be seen the circuit still contains
two resistors. Calculate (a) the total current at the
circuit indicating the module and direction. (B)
Also calculate the Vab voltage at the terminals
of the largest fem. (Upload the following image)

Answer 1