The current throught a particular high-resistance(long) bulb when connected to two batteries in series (3.2 volts)is about 90 milliampere (ma); connected to one battery (1.6 volts)the current is about 80 ma; and connected to a small voltage ofonly 50 millivolts the current is about 5 ma. (differenthigh-resistance (long) bulbs may differ from these valuessomewhat.) using the formula i = , what is r for each of these cases?
1.
2.
3.
(b) is a high-resistance (long) bulb an ohmic resistorover this whole range of currents? (choose the correctanswer(s))
1. the bulb is not ohmic, because itsresistance changes if the current through the bulb changes.
2. the bulb is ohmic, because it isnot possible for the resistance of any resistor to change.
3. the bulb is ohmic, because lightbulbs are ohmic.
4. the bulb is ohmic, because one canuse the formula .

answer; a. neither end of earth's axis is tilted toward or away from the sun .is your correct answer;

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:

answer: electrons

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.