Answer:
usually x-ray tube filaments are devices that limit the current flow i.e. current cannot easily pass through them or we can say that they are current limited devices. So to allow fine electron transmission control by filament heating current, rhenium must not be used in x-ray tube filaments.
Answer:
The first source of energy in a food chain is producer.
Explanation: In the food chain, the producer will be a plant that a primary consumer, a herbivore eats. The herbivore gets eaten by a secondary consumer, carnivorous. When the carnivore dies, it becomes energy for a decomposer.
The correct answer that would best complete the given statement above would be RENT CONTROL. The rent control is the highest amount that a landlord or a property owner can charge for a rent. Rent control is established by the government that gives the maximum amount as to how much a landlord can charge the tenant. Hope this answer helps.
Answer:
(a) V1 = 8990.00 V
V2 = 8960.13 V
Explanation:
Parameters given:
q =3 mC
k = 8.99 * 10⁹ Nm²/C²
x1 = 3 m
x2 = 3.01 m
Electric potential is given as:
V = kq/r
Where
k = Coulombs constant
q = charge
r = distance
Potential at x1 is:
V1 = (8.99 * 10⁹ * 0.000003)/(3)
V1 = 8990.00V
Potential at x2 is:
V2 = (8.99 * 10⁹ * 0.003)/(3.01)
V2 = 8960.13 V
Answer:
The voltage is 
Explanation:
From the question we are told that
The voltage of the battery is 
The capacitance of the capacitor is 
The resistance of the resistor is 
The time taken is 
Generally the voltage of a charging charging capacitor after time t is mathematically represented as
Here 
is the voltage of the capacitor when it is fully charged which in the case of this question is equivalent to the voltage of the battery so
