A long solenoid (n = 80 turns/cm) carries a current of 70 mA. Determine the magnitude of the magnetic field inside the solenoid
7.0 gauss
Physics & Space Science
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A 1.0-m length of nichrome wire has a radius of 0.50 mm and a resistivity of 1.0 × 10-6 ? ? m. When this wire carries a current of 0.50 A, what is the voltage across its ends?
A) 0.0030 V B) 0.32 V C) 0.64 V D) 1.6 V
Physics & Space Science
Which of the following is a particle of light?
A) quark B) neutron C) proton D) electron E) photon
Physics & Space Science
The fundamental particles that are the building blocks of hadrons are __________
Fill in the blank(s) with correct word
Physics & Space Science
A trapeze artist, with swing, weighs 700 N; he is momentarily held to one side by his partner so that the swing ropes make an angle of 30.0° with the vertical. In such a condition of static equilibrium, what is the horizontal force being applied by the partner?
a. 924 N c. 808 N b. 404 N d. 233 N
Physics & Space Science