Below image, please give me the answer quick.

Option A. ⅓V

Explanation:

We'll begin by calculating the total resistance in the circuit. This is illustrated below:

R1 = 1Ω

R2 = 2Ω

R3 = 3Ω

RT =..?

Since all three resistor are in series connections, the total resistance can obtain as follow:

RT = R1 + R2 + R3

RT = 1 + 2 + 3

RT = 6Ω

Next we shall determine the current flowing through the circuit.

Voltage (V) = 2V

Resistor (R) = 6Ω

Current (I) =..?

V = IR

2 = I x 6

Divide both side by 6

I = 2/6

I = ⅓A

Finally, we can obtain the voltage across the 1Ω resistor as follow:

Resistor (R) = 1Ω

Current (I) = ⅓A

Voltage (V) =?

V = IR

V = ⅓ × 1

V = ⅓V

Therefore, the potential difference across the 1Ω resistor is ⅓V

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: