General Physies 2 Exercise Set #1 Name: Instcuctionsz Two solutions per sheer fo
ID: 306156 • Letter: G
Question
General Physies 2 Exercise Set #1 Name: Instcuctionsz Two solutions per sheer fome solution on each side). Stople sheets sogether inorer Show ar work Work nearly in pencil. Circle your annwers in in 1) A paralled plate capacitor is designed to have a capacitance of 1.00F when the plates are separated by 1.00 mm in a vacuum. What must be the area of the plates? (Hint: c-tad relates capacitance, arca, and separation 2) Explain Coulombs Law 3) All substances can be arranged in order of their ability to conduct electrical charges. Those at the top (most conductive) are called 4) An objoct which has an imbalance of electrons and protons ischarged. If it has more a and those at the bottom electrons than protons, the object is said to becharged. If it has fewer electrons than protons, it is said to be charged. Because no cloctron can be created nor destroyed, but are simply transferred from one material to another, we say that charge is around it that interacts with any other charges present. 5) An cloctric charge produces an 6) Cite three major differences between gravitational and electrical forces 7) Thermal energy flows through a conductor when a difference in temperature exists across its ends. Charge across the ends of a conductor flows when there is a A point charge, q 5.64uC, is placed in an electric ficld of 2.55x10'N/C. Find the foree acting on the charge. 8) 9) (a) Compute E in air midway between two point charges of 20x10 C and-5x10C separated by a distance of 10cm. (b) What is the force on a 4x10 C point charge placed at the midpoint? 10) A parallel plate capacitor whose plates are 2.5cm apart is charged to a potential difference of 100V. What would be the force on a test charge of 1.0HC placed between the plates? 11) The study of stationary electric charges and resulting forces is called 12) The minimum change in an electrical charge, aq, is 13) A positive charge usually results from the (a) loss or (b) gain of (e) electrons or (d) protons 14) There are Coulombs. electrons in a Coulomb of charge. 15)T or F: The energy of an electron moved through a potential AV -3.00 V is changed by 3.00 ev. 16) The direction of the electric ficld is alwaysExplanation / Answer
1)
C=1.00F, d= 1.00mm=0.001 m,
C=?0A/d
A= = Cd/?0
Plug values,
A= (1.00*0.001)/(8.85*10^-12)
A= 1.13*10^8 m^2
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