Answer:
Miller index:
This is the set of number which is used to define the position of face any crystal.We know that crystal plane is the plane where large number of molecule are present inside this plane.
Lets take r is the vector which is passing through the origin of lattice
r = a i + b j + c k
So the intercept on the plane x is a unit ,on the y plane is b unit and on the z plane is c unit.
Now when we take the reciprocal of these intercept we get 1/a, 1/b , and 1/c.These reciprocal of intercept is know as Miller index.
"Elias Howe invents the sewing machine" is the one event among the following choices given in the question that occurred first in 1846. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has actually come to your desired help.
R1 + R4 = 1430 + 1350 = 2780 = R14 series combination of R1 & R4
R2 + R5 = 1350 + 1150 = 2500 = R25
The circuit has been reduced to 3 resistors in parallel
R314 = 2780 * 1100 / (2780 + 1100) = 788 this is the resistance of the parallel combination of R14 and R3
R31425 = 2500 * 788 / (2500 + 788) = 599 which is the equivalent of the circuit - you can also use the formula for 3 resistors in parallel but this seems simpler
If I’m understanding this. Th reason why the ball can resist gravity’s pull is because the force used to throw it up was greater than gravity’s pull on it. BTW, gravity’s pull is 9.8m/s. So it would have to be greater than that
- P is power
- R is resistance
Hence
- Therefore if power is low then resistance will be high.
The first bulb has less power hence it has greater filament resistance.
