What changes in the magnitude and the direction of the electric field would we witness if there is an increase in the voltage difference between the electrodes? a. The magnitude would increase only in the second investigation, but the direction would stay the same in both investigations b. The magnitude would stay the same in both investigations but the direction would change c. The magnitude would increase in both investigations but the direction would stay the same d. The magnitude would increase only in the first investigation, but the direction would stay the same in both investigations

Part A The lines show the equipotential contours in the plane of three point charges, Q1, Q2, and Q3. The values of the potentials are in kV as indicated for the +5, 0, and -5 kV contours. The positions of the charges are indicated by the dots. cm 1 Q₁. Volts 2 +5 Q3 The letters are on the equipotential contours. Q₂ # m

5 V 1. For the circuit below, the total current drawn by the circuit is 0.40 A. + a. What is the voltage (in V) across each light bulb? (3) b. Determine the current (in A) in each light (3) bulb. c. What is the equivalent resistance (in 2) of the two branches in parallel? (2) d. What is the total resistance (in 2) of the circuit? (2) R₁ = 7 Ω R₂ = 90 R3 = 130

What is the standard SI unit for electric potential difference? A. Ampere B. Coulomb C. Joules D. Volt What is the equation of electric potential? A. V = d²/f B. V = U/Q C. V= td D. V = kQq/r2 %3D

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Show the following in your answer: A. Given Quantities B. Unknown Quantity/Quantities C. Complete solution with relevant equations A. Round off final answer to 2 decimal places B. Box final answer and express it in the correct unit 1. An electric field of 640 V/m is desired between two parallel plates 11.0 mm apart. How large a voltage should be applied?

Please give a clear explanation

State which of the following statements are true and which are false. Give reasons for your answers. a) b) If you rub a children's balloon on a cat, it will then stick to the cat. This is an electrostatic effect. A galvanometer can be converted to a voltmeter by adding a large resistance in parallel to the galvanometer. Radioactive decay is predictable, so that e.g. a uranium atom will decay when it is 4 billion years old. c) d) e) Kinetic energy KE = 1½mv² is just a first approximation from E = mc² = ymoc² Sharp lines in the emission spectra of a gas discharge lamp are due to excited electrons falling back to lower states.

I. Multiple Choice. Understand the following statements carefully. Write the letter of your answer in the blank before each number. _1. Four cells each of emf E are joined in parallel to form a battery. The equivalent emf of the battery will be A. 4 E В. Е 2. Electromotive force of a battery can be defined with the formula C. E/4 D. E = 0 A. E = IR B. E = IR + 1 C. E = IR + r _3. Potential difference of a battery is 2.2 V when it is connected across a resistance of 5 Q, if suddenly D. E = IR + Ir potential difference falls to 1.8 V, its internal resistance will be В. 1.1 Q A. 10 C. 20 D. 2.10 4. If a 6 V and a 9 V source are connected series aiding, the total voltage is А. 3V 5. If a 24 V and a 6 V battery àre series opposing, the total voltage is В. 6V C. 15 V D. 9 V A. 18 V B. 24 V C. 30 V D. 20 V

4. To charge an uncharged conductor negatively by using a given positively charged object, you will use a. conduction method the ground b. induction method c. connect both conductor to 5. You released a proton and an electron in between two oppositely charged parallel plate conductors. Proton is released from the positive side and electron is released from the negative electrode side. a. The electric force on proton> the electric force on electron b. The electric force on proton = the electric force on electron C. the electric force on electron < the electric force on electron d. There is no electric force on proton and electron Page 1 of 7 1286 words English (United States) O Focus MacBook Air