Name: Midterm E&M; Physics Have all numerical solutions over a thousand or less

Question

Name: Midterm E&M; Physics Have all numerical solutions over a thousand or less than a hundredth in scientific notation. 1. What do each of these letters represent when in an equation? (For example: v is used to represent velocity.) C, J ,, 2. Is it a junction or not? For each diagram write either "yes" or "no" 3. What are the four resistivity categories for material from most resistant to least resistant? 4. Below each of the following quantities, write the corresponding metric unit they are measured in: Electric potential, Resistivity, Voltage, Equivalent capacitance, Electromotive Force, Capacitive Time Constant 5. Answer the following questions concerning the use of a multimeter. a. What measurable quantity can never be negative? b. What type of quantity (scalar or vector) is a multimeter unable to read directly? c. What measurable quantity is independent of the circuit being DC or AC? 6. Fill in the blanks. a. Electricity is made up of- b, inside a electrochemical cell, c. Electrical potential provides us with an efficient and indirect way of measuring d·The electric field provides us with an efficient and indirect way of measuring e. The electron volt is a unit used to measure the chemically reacts with the 7. In a lab report, what type of information can be found in the abstract?

Explanation / Answer

1. from the given etters

C represents capacitance

J means current density

t refers to time constnat

epsilon referes to voltage

E refers to electric field

2. diagram 1, 2 and 4 are junction

3. most resistant : insulators

intermedialte resistnace : semiconductors

low resistance : conductors

lowesr resitance : superconductors

4. Electric potential : VOlta (V)

Resistivity : Ohm m

VOltage : Volts

Elquivalnet Capacitance = Farad

Electromotive Force = Volts

Capacitatice time constat = seconds

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