Ohm's law - practice problems - page 5 of 6
Ohm's law states that the current through a conductor (or resistor) between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, it arrives at the usual mathematical equation I = U/R or I=V/RNumber of problems found: 102
- Resistance 7503
The resistance of a 40W light bulb is 10 Ohms. What voltage source is connected to it? What current is flowing through it? - Two resistors
Two resistors when they give 25 ohms in series and 4 ohms in parallel, what are the values of - Transformer
Solve the textbook problems - transformer: a) N1 = 40, N2 = 80, U2 = 80 V, U1 =? b) N1 = 400, U1 = 200 V, U2 = 50 V, N2 =? - Electric input power
Solve problems related to electric power: a) U = 120 V, I = 0.5 A, P =? b) P = 200 W, U = 230 V, I =? c) I = 5 A, P = 2200W, U =?
- Resistance 6626
Two resistors of 20 Ω and 30 Ω are connected in the electrical circuit. a, Calculate the total resistance in the electrical circuit if the resistors are connected in series. b, Calculate the total resistance in the electrical circuit if the resistors are - The bulbs
The bulbs are connected serially to two bulbs and one resistor. Each bulb has a resistivity of 100 ohms, and the resistor has a resistivity of 60 ohms. The voltage source in the circuit is 24 volts. Do you know what voltage to measure on individual applia - R1+R2 in parallel The resistance ratio of the first and second resistors is 3:1, and the current flowing through the first resistor is 300 mA. What current flows through the second resistor (resistors connected in parallel)?
- Resistance 5939 If the resistance of the first resistor is 200 ohms and the resistance of the second resistor is 600 ohms. What will be the ratio of the electrical voltage across the first resistor to the electrical voltage across the second resistor (both are connected
- Resistance 5938 If the resistance of the first resistor is 100 ohms and the voltage ratio on the first and second resistors is 2:1. What will be the resistance of the second resistor connected in series?
- Resistance - ohms If the resistance of the first resistor is 300 ohms and the resistance of the second resistor is 100 ohms. What is the resulting resistance?
- Resistance 5920
If the resistance ratio of the first and second resistors is 3:1 and the current flowing through the first resistor is 300 mA. What will be the current through the second resistor? - Serial connection If the voltage on the first resistor is 6 V and the resistance ratio of the first and second resistors is 1:3, what will be the voltage across the second resistor if they are connected in series?
- Resistors 5915 If the current flowing through the first resistor is 200 mA and the second is 0.4 A, what will be the ratio of the first and second resistors connected in parallel?
- The appliance
The appliance has a power input of 2.3 kW. It is connected to the mains voltage of 230 V. What is the current flowing through the appliance?
- Filament of bulb
The bulb's filament has a 1-ohm resistivity and is connected to a voltage of 220 V. How much electric charge will pass through the fiber when the electric current passes for 10 seconds? - Electrical 5720
The bulb is connected to a 4.5 V power supply. An electric current of 45 mA flows through the filament of the bulb. The calculated size of the electrical field of the filament lamp - Electrical 5719
A resistor with an electrical resistance of 1.5 kiloohms passes through an electrical current of 0.1 amps. Calculate the electrical voltage between the resistor terminals - Coil as a girl
The electrical resistance of the copper wire coil is 2.0 ohms. What current runs through the coil when the voltage between the terminals is 3.0 V? - Resistance of the resistor The resistor terminals have a voltage of 20 V, and a current of 5 mA is passed through. What is the resistance of the resistor?
The kettle is connected to a voltage of 230 V. Its resistance is 130 ohms. What is the current flowing through the kettle?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
