Question

Define charge, potential difference, current, work, ohms law, power, resistance, parallel circuit, kirchoffs law?

Answer #1

charge it is the property of a body by virtue of which its attract or repel another charge charges are of two types positive and negative like charges repel and unlike charges attract each other

potential difference it is define as amount of work done in moving a unit positive charge from one point to another point.

V=W/q unit is volt

current

the rate of flow of charge is known as current

I=q/t unit is ampere

work

the product of force and displacement is called as work in the direction of force

W=Fscos(theta) unit is Joule

Ohm's law

this law states that current flowing through a wire is directly proportional to the potential across the wire

V=IR

power

its is define as the rate of doing work

P=VI unit is watt

resistance

the opposition offered by conducter to the flow of current is called as resistance

parallel circuit

in a circuit if voltage across many circuit elements is same then they are called to be in parallel

kirchoffs law

Kirchhoff's current law states that current flowing into a node (or a junction) must be equal to current flowing out of it. This is a consequence of charge conservation.

Kirchhoff's voltage law states that the sum of all voltages around any closed loop in a circuit must equal zero. This is a consequence of charge conservation and also conservation of energy.

Two resistors 1.00 ohms and 2.00 ohms are connected in parallel,
then they are connected to 3.00 ohms resistor and a 9.00 V battery
in series to complete a circuit.
a. What is the equivalent resistance of this circuit?
b. What is the current through the 1.00 Ohms resistor?
c. What is the voltage on 3.00 ohms resistor?
d. What is power dissipated on 2.00 ohm resistor?

Three light bulbs each of resistance 25 ohms are connected ina
parallel circuit and connects to a 9.0volt battery to complete the
circuit. What is the voltage across each resistor!

1A)Parallel circuit and a battery with three resistors. A switch
is there to prevent current from flowing out. The resistors all
have different resistances such as that R3 is half the resistance
of R1 and R1 is four times the resistance of R2. The switch is
close so the circuit is active. Rank the resistores by the
current going through them, from SMALLEST TO
LARGES.
1B) Parallel circuit and a battery with three resistors. A
switch is there to prevent...

Resistors R 1 = 20 ohms, R 2 = 40 ohms, and R 3 = 60 ohms, are
all connected in series with one another.
The combination of three resisters in series is now connected in
parallel with a 240 ohm
resistor, and the resulting circuit is connected across an ideal
62.5 volt battery.
a) Find the equivalent resistance connected across the
battery.
b) Find the potential across each of the four resistors, and the
current through each.
c) Find...

1. Using what you know about resistance, current, and Ohm's Law,
hypothesize about how parallel resistors would affect current flow.
What would you expect the effect of the resistance of two equal
resistors in parallel to be on the current flow, compared to the
resistance of one alone?
-What are the different advantages of a) the series vs. b) the
parallel circuits? The resistors could be replaced with lightbulbs
or any other household objects including switches and fuses. Can
you...

Series/Parallel Circuits: When unequal resistors are connected
in series across an ideal battery,
the same power is dissipated in each one.
the potential difference across each is the same.
the equivalent resistance of the circuit is equal to the
average of all the resistances.
the current flowing in each is the same.
the equivalent resistance of the circuit is less than that of
the smallest resistor.

A coil rated at 145. mH also has a resistance of 25. ohms and is
connected across a 120 volt, 100. Hz source. Please show all work
to answer the following:
a) the inductive reactance of the coil
b) the impedance of the coil
c) the effective, maximum, and peak-to-peak current in the
circuit
d) the phase angle and power factor
e) the actual average power dissipated in the circuit

Write a program display the following menu:
Ohms Law Calculator
1. Calculate Resistance in Ohms
2. Calculate Current in Amps
3. Calculate Voltage in volts
4. Quit Enter your choice (1-4)
If the user enters 1, the program should ask for voltage in
Volts and the current in Amps. Use the following formula:
R= E/i
Where:
E= voltage in volts
I= current in amps
R= resistance in ohms
If the user enters 2 the program should ask for the voltage...

using ohm's law, calculate the voltage across a conductor with a
resistance of 10 ohms, passing a current of 1.2A

1) As more lamps are connected in a parallel circuit, the resistance
a. Increases
b. Decreases
c. It remains the same
d. It depends if the resistances are equal to different
2) A light bulb is connected to a 110 volt outlet. We can say
that
a. None of the above.
b. Every second 110 coulombs of charge flow through the
bulb.
c. Each coulomb of charge in the circuit receives power of 110
joules.
d. Every second 110 joules...

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