14. In the circuit the resistors are
connected to a total of 3 V, calculate
(a) the total resistance, (b) the total
current

There are five lamps of 1.1 ohms resistance each, in parallel. The total resistance is (1.1 / 5) = 0.22 ohm.

Current = Voltage / Resistance.

There's no current in the circuit right now, because the switch is open. As soon as somebody closes the switch, the current will be

(3 V) / (0.22 ohm) = 13.6 Amp.

(For a very short time. That's a huge load for 1.5-V batteries, and they'll quickly run out of gas.)

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

it was given as a lesson and guide for prayer.