Answer:
voltage= 17.88volts
current= 0.04 amps
Explanation:
Step one:
given data
resistance R=400 ohms
Power P= 0.8W
a. What is the maximum voltage that can be applied across this resistor without damaging it?
the expression relating power and voltage is
P=V^2/R
substituting we have
0.8=V^2/400
V^2=0.8*400
V^2=320
V=√320
V=17.88 volts
the maximum voltage is 17.88volts
b.What is the maximum current it can draw?
we know that from Ohm' law
V=IR
17.88=I*400
I=17.88/400
I=0.04amps
Answer:
The correct option is (a).
Explanation:
Given that,
The energy of photon, E = 2.52 eV
We need to find the wavelength of the photon in nm. The formula for the energy of a photon is given by :
The nearest option is a) i.e. 492.34127 nm.
Brass, Salt and water are examples of a Homogeneous Mixture.
1. Graph G
2. B and D only
3. Line segment BC is showing acceleration as the cart is increasing its speed.
4.Yes, the object moves (1) at a steady rate (2) slows down (3) stops and then rolls back, speeding up.
