Electric Circuits Answers

Two charges each with a magnitude of 1.1⋅10−7 C experience a force of 4.2⋅10−4 N. How far apart are the charges from each other? 

A battery powered torch uses a 9 V battery and dissipates 0.25 W of electrical power in the bulb.

If the torch is used for 1.0 hours then how much charge has passed through the bulb? (to 2 s.f and in C)

Let: A = no. of letters of your given name B = no. of letters of your middle name

A) Find the speed of a wave if its if its frequency is A Hz and its wavelength is B meters.

B) An radio transmitter produces a wave that has a wavelength of 600 m and travels at 200 m/s. What is its frequency?

C) Research on the cause why the sky is blue and sunsets mostly red, orange and yellow.

A 24.0 V battery is connected to a circuit that has an ammeter (A1), a 6.0 ohm

resistor connected in series with a voltmeter (V1) and 3 resistors connected in parallel

R1, 2.0 ohms, R2, 2.0 ohms and R3, 1.0 ohms. There is a voltmeter (V2) placed across

the R1 and an ammeter (A2) in line with R2. A. Calculate the values of the meters. (V1,

V2, A1 & A2).

Let: A = no. of letters of your given name

B = no. of letters of your middle name

A) Find the speed of a wave if its if its frequency is A Hz and its wavelength is B meters.

B) An radio transmitter produces a wave that has a wavelength of 600 m and travels at 200 m/s. What is its frequency?

C) Research on the cause why the sky is blue and sunsets mostly red, orange and yellow.

Water is boiling in an aluminum pan placed on an electrical element on a stovetop. The sauce pan has a bottom that is 0.800 cm thick and 14.0 cm in diameter. The boiling water is evaporating at the rate of 1.00 g/s. What is the temperature difference across (through) the bottom of the pan?

A hot black body emits the energy at the rate of 16 J m^-2 s^- 1 and its most intense radiation corresponds to 20,000 Å. When the temperature of this body is further increased and its most intense radiation corresponds to 10,000 Å, then find the value of energy radiated in Jm^-2 s^-1

A dc electric motor consumes 36000000 Joules when connected to a 0.25 kV supply for 60 minutes. Find the current taken from the supply?

Answer by choosing the closest answer of this question from the following choices.

a. 40 W

b. 30 A

c. 40 A

d. 10000 W

What causes electric shock...high electric current or high voltage

Implement F= summation (1,3,5,15) using

A. 8x1 MUX

B. 4x1 MUX

C. 2x1 MUX