Electric Circuits Answers

What resistance must be connected in parallel to 60 Ω resistor to

reduce the combined resistance of 15 Ω?

Four resistors when connected in series give an equivalent

resistance if 75.0 Ω. Three of the resistors have values 18.0 Ω, 6.0 Ω, and

24.0 Ω, respectively. What is the resistance of the fourth resistor?

The capacitors have values C₁ = 2.5 uF and C₂ = 4.0 µF, C3 = 6.0 μF C₁ = 8.0 μF and the potential difference across the battery is 12.0 V. Assume that the capacitors are connected in series. Find the equivalent capacitance of the circuit and solve for the potential difference across each capacitors.

You have five 10.0 F capacitors. Show all possible connections of all five capacitors to produce an equivalent capacitance of

a. 50.0 F

b. .5 F

c. 35 F​

For the circuit on the right, find the following quantities:

a. The circuit current.

b. The total resistance of the circuit.

c. The value of the unknown resistance, R.

d. The voltage-drop across all resistors in the circuit.

e. The power dissipated by all resistors.

100Ω

150Ω

E=25V

Rt= 800Ω

30Ω

R

Determine the Oxidation State of the highlighted element below.

H₂ PO₄-

Solution:

A helium nucleus and neon nucleus are separated by a distance of 3.0 nanometers. The charge of the helium nucleus is +2e while that of neon nucleus is +10e. Find the magnitude of the electrostatic force they exert to one another.

two (2) nickel coins with identical charges are separated by 1.5 m. If the forces exerted by the coins to one another are both 2N, what is the charge on ech coin?

what is the force of repulsion between two(2) argon nuclei that are separated by 1x10^-9 m? The charge of one argon nucleus is +18e.

Identify whether the concrete, dirty water, tin cans, and CD and DVD are ohmic or non ohmic.