Three resistors are connected in series. They have resistances of 9, 8, and 3 Ohms. Determine the total resistance of this arrangement. Then, if we connect this system to a 9 V battery, what would be the current (in Amperes) through the circuit?

A battery delivering a current of 55.0 A to a circuit has a terminal voltage of 21.1 V. The electric power being dissipated by the internal resistance of the battery is 35 W. Find the emf of the battery. emf = i

A 9.0 V battery is connected to four light bulbs (It has four resistors 2 ohms, 4 ohms, 4ohms, and 6 ohms). Find the equivalent resistance for the circuit and the current in the circuit. Use the equivalent resistance to determine the total power dissipated by the resistors in the circuit.

The resistance of an electric heater is  90 Ω  when connected to 120 V. How much energy does it use during  20 min  of operation?

An ammeter is used to measure the current flowing through a circuit consisting of only two resistors in series with a D.C. power supply. The power supply is set to 25 Volts. One of the resistors has a resistance of 24 Ohms. If the ammeter measures 0.6 Amps, what is the resistance of the other resistor?

In the circuit shown in the diagram below, two thick wires connect a 1.7 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 17 cm long, and has a radius of 11 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 8 cm long, and has a radius of 2 mm. Nichrome has 9e+28 mobile electrons per cubic meter, and an electron mobility of 7e-05 (m/s)/(V/m). [Copper What is the magnitude of the electric field in the thick copper wire? ]V/m What is the magnitude of the electric field in the thin Nichrome wire? v/m Nichrome Copper

Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.

The resistance of an electric heater is  90 Ω  when connected to 120 V. How much energy does it use during  50 min  of operation?

Three resistors of resistances R1 = 11.3, R2 = 50.6, and R3 = 83.4 are connected in series with a 15.1 V battery. How much current (IT) runs through the circuit?