Physics, 10.04.2020 00:21 Xavier2712
A physicist measures the magnetic field at the center of a loop of wire with N number of turns (not a solenoid) and current I flowing through it. They then triple the number of coils and half the radius of the coil while keeping the current the same. How does the magnetic field compare in the new situation, B2, compared to the first measurement, B1?
a. B2 = (3/2)B1
b. B2 = 6B1
c. B2 = (2/3)B1
d. B2 = (1/6)B1
d. None of the above
Answers: 1
Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
Answers: 1
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 11:00
What is the measurement of how fast an object moves relative to a reference point?
Answers: 1
Physics, 22.06.2019 14:30
Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal
Answers: 1
A physicist measures the magnetic field at the center of a loop of wire with N number of turns (not...
History, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
History, 02.12.2020 21:10
Geography, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
English, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10
Biology, 02.12.2020 21:10
Mathematics, 02.12.2020 21:10