Number 9,10 and 11. Thank you A 2000 Ohm resistor is connected to an AC power su

Question

Number 9,10 and 11. Thank you A 2000 Ohm resistor is connected to an AC power supply that operates at 60 Hz with an amplitude of 30 V. What is the average power dissipated in the resistor? Four resistors arc connected to a 6V battery as shown: What is the total resistance in the circuit? How much power is dissipated in the 1 Ohm resistor? An electron moving with velocity v to the right enters a region of uniform magnetic field that points out of the paper. After the electron enters the field, it will be deflected out of the paper, in the direction of the field deflected into the paper, opposite to the field deflected downwards deflected upwards undeviated

Explanation / Answer

9) 2 ,4 and 6 ohm are in parallel and their equivalent is in series with 1 ohm

1/R = 1/2 + 1/4 + 1/6
1/R = 11/12
R = 12/11 = 1.1 ohm

R(equivalent) = 1.1 + 1 = 2.1 ohm

so option b is the correct answer

10) V= 6V
I = V/R = 6/2.1 = 2.857A

so current flowing through 1 ohm = 2.857 A
power dissipated = I^2R = 2.857^2*1 = 8.16 W =8.2 W
Option b is the correct answer

11) deflected downwards
direction is perpendicular to velcoity and magnetic field

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