opposite charges
an attracting force occurs between two charged objects when the charges are of
700000000
a high voltage transmission line carries 1000 A at 700 000 V. what is the maximum power carried in the line?
1/20=2n
three resistors with values of 4, 6, and 10 are connected in parallel. what is their equivalent resistance?
total
resultant force on a charge is the ____ sum of the individual forces on that charges.
they have electric charges that move freely
which sentence best describes electrical conductors?
Pelectric=-qED
which of the following is not a characteristic of electrical potential energy?
25V
what is the potentioal difference across a 5.0 resistor that carries a current of 5 A
0.625A=1
if a 75 W lightbulb operates at a voltage of 120V what is the current in the bulb?
1.6V
three resistors connected in parallel have indivual values of 4 6 and 10 as shown above. if this combination is connected in series with a 12v battery and a 2 resistor. what is the current in the 10 resistor?
simple series circut
a circut has a continous path through which charge can flow from a voltage source to a device that uses electrical energy. what is the name of this type of circut?
10n
what is the equivalent resistance for the resistors in the figure shown above?
6n
two resitors with values of 6 and 12 are connected in parallel. this combination is connected in series with a 2 resistor and a 24 v battery. what is the current in the 2.0 resistor?
equal in both capacitors
when comparing the net charge of a charged capacitor with the net charge of the same capacitor when it is uncharged, the net charge is
equivalent r is the sum of individual resistors
a circut is composed of resistors wired in series. what is the relationship between the equivalent resistance of the circut and the resistance of the individual resistors?
alike charges
a repelling force occurs between two charged objects when the charges are of
1.7 n
three resistors with values of 3 6 and 12 are connected in parralel. what is the equivalent resistance of this combination?
1.33A
if the measured resistance of a lamp is 45 when it operates ar a power of 80 W, what is the current in the lamp?
positve, negative
a capacitor consiss of two metal plates___ is stored on one plate and _____ is stored on the other.
current(voltage)
charge is most easily transferred in
doubling the current and making the resistance half as big
which process will double the power dissipiated by a resistor?
18n
three resistors with values of 4 6 8 respectively are in a connected series. what is their equivalent resistance?
9v
IF A 9 V battery is connected to a lightbulb, what is the potential difference across the bulb?
116.552=117v
If a lamp has a resistance of 136Q when it operates at a power of 1.00*10^2 W, what is the potential diffrenece across the lamp?
5
two point charges initially 2 cm apart, are moved to a distance of 20 cm apart,by what factor does the resuslting electric force between them change?
2.25*10^-6
a .25 uf capacitor is connected to a 9 V battery. what is the charge on the capacitor?
r1+r2+r3
which of the following expresses the total resistance of the three resistors?
negative
if a positively charged glass rod is used to charge a metal bar by induction, the charge on the bar is___
.5
a lightbulb has a resistance of 240Q when operating at 120V. what is the current in the lightbulb?
9V
if the potential difference across the bulb in a camping latern is 9v what is the potentioal difference across the battery used to power it?
11
what is the resistance of the heating coil?
capacitance will lower
what effect will be produced on a capacitor if the separation between the plates increased?
conduction
the process of charging a conductor by bringing it near another charged object and the grounding the conductor is called?
bottom of sphere
where is the electric field of an isolated,uniformly uncharged, hollow metallic sphere the greatest?
60.75W
a 1.5 uf capacitor is connectedf to a 9v battery. how much energy is stored in the capacitor
equal to or less than original voltage
in any complex reistance circut, the voltage across any resistor is always
.5625a
A flashlight bulb with a potential difference of 4.5v across it has a resistance of 8.0 Q.how much current is in the bulb fillament?
10A
what is the equivalent resistance of the resistors in the figure shown above?
2.25
what is the equivalent resistant fot the resistors in the figure shown above?
the maximum storage capacitance is reached
charge buildup between the plates of a capacitor stops when
electrice field strength increase, force increases
what occurs when two charges are moved closer together?