Electric Circuits Answers

What is the correct way to connect the ammeter and the voltmeter into the circuit

The light bulb and rheostat are connected in series and powered from a constant current source.
The resistance of the rheostat and the voltage at the terminals of the light bulb are known: 10  and 40 V.
The external circuit consumes 120 W of power. Find the current in the circuit.

The load was connected to the external battery circuit. At a current of 3 A, 18 W of power is
released in the external circuit. Find the load resistance and EMF of the battery if the internal resistance of
the battery is 0.5 .

Circuits Assignment Questions
1. A pocket calculator works from a 3.0 V battery to deliver a current of 0.17 mA. If the
calculator operates for a time of 1.0 hours, how much charge flows through the current
in this time?

The maximum current power in the external battery circuit at a current of 0.2A is 4W.find the emf and the resistance of the battery

The total electric flux through a closed cylindrical (length = 1.2 m, diameter = 0.20 m) surface is
equal to 5.0 N  m2
/C. Determine the net charge within the cylinder

How much energy is required to run a 35 W light bulb for 4.0 min?

it shows the charge distribution within a thundercloud.There is a charge of 40 C at a height of 10 km,−40 C at 5 km,and 10 C at 2 km. Considering these charges to be pointlike,find the net electric field produced at a height of 8 km and ahorizontal distance of 3 km.