same please
cuz idk
1) a balloon is rubbed against a sweater. Which of the following describes the result of this interaction?
A) The fibers of the sweater lose electrons
2) a positive charge is 1 m to the left of a negative charge. The positive charge is then moved and placed 1 m to the right of the negative charge. What happens to the electrostatic force between the charges?
D) The electrostatic force remains attractive, and the magnitude does not change
3) two equal charges of magnitude q are at a distance of r units apart. In which scenario will the electrostatic force between them remain the same?
D) When q is doubled and r is doubled
4) when would force lines connect two charges?
D) if the charges were opposite
5) what is the force on a 0.0020 C charge in an electric field of 150 V/m
C) 150.002 N
6) a circuit with a 20.0-V power supply and two resistors in series: R1 = 4.00 ohms, and R2 = 2.00 ohms. What is the resulting current in the circuit?
B) 3.33 A
7) What is the resistance of resistor R1?
V = 15 V H-- а Is = 5.0 A current joins up here current splits here R R2 12 = 3.0 A
A) 5.0 Ω
B) 2.0 Ω
C) 7.5 Ω
D) 3.0 Ω
I dont know the answer to this one
8) 24 V. R1=3 Ω. R2 = 3 Ω
A) total resistance = 6 ohms. Current through R2= 4 A
9) Find the potential difference across R2 and the current through R2
There's a picture of a square. At the top of the square is 16V on the left side is V3=10V R3. on the right side of the square is R1 V1=4V I1=6A. on the bottom it says R2
A) potential dofference = 6 V. Current = 18 A
B) potential difference = 6V. Current = 6 A
C) potential difference = 2V. Current = 2 A
D) potential difference = 2V. Current = 6 A
I dont know the answer to this one
10) a 15- volt power supply Is used to power a circuit with two resistors I'm series. The voltage drop across R1 is 5 volts. What is the voltage drop across R2?
A) 10 volts
11) a 10-volt power supply is used to power a circuit, producing a current of 2A. If the total resistance of the circuit is doubled, how will this affect the circuit?
C)the current will change so that the voltage drop for a complete loop through the circuit remains at 10 V
12) a series circuit is formed with a 10-V power supply and two resistors where R1=6 ohms, and R2= 4 ohms. The current through the resistors is l1 and l2 respectively. What are the values of I1 and I2?
C) I1 = I2 = 1.0 A
1 answer