I need help with 1 thorugh 10 please true and false questions E = 1.60 times l0^

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I need help with 1 thorugh 10 please true and false questions

E = 1.60 times l0^-19 C m_e = 9.11 times 10^-31 kg m_p almostequalto m_n= 1.67 times 10^-27 kg T/F An electric field MUST exist within a conductor if it is conducting current. T/F Current can flow only from low potential to high potential through a battery. T/F ALL conductors are resistors. T/F Resistors in parallel add like capacitors in series. T/F Current flows from point b to point a through a resistor. It follows that V_ba > 0. T/F The time constant, tau, in a discharging RC circuit increases if the total initial charge increases. T/F Thales of Miletus is the earliest known to have discovered magnetism T/F Magnetic north corresponds to geographic north T/F No matter how complicated the motion of a charged particle in a uniform magnetic field the component of the velocity parallel to the field remains CONSTANT T/F The magnetic force cannot accelerate a single charged particle A particle with a speed v = 1.5 times 10^5 m/s moves 30 degree relative to the magnetic field (see the image at the right). The magnitude of the magnetic field is B = 2 T. What is the magnetic force on the particle? A. 3 times 10^5 N into the page B. 3 times 10^5 N out of the page C. 2.6 times 10^5 N into the page D. 2.6 times 10^5 N out of the page E. 1.7 times 10^5 N into the page AB. 2.6 times 10^5 N out of the page

Explanation / Answer

1) False. Because Electric field inside the conductor is always zero.

2) False, Because current always flow from higher to lower potential.

3) False. Insulators are resistor, conductors can used to conduct electricity and heat.

4) True. In series 1/c = 1/c1 + 1/c2 and for rsitors in parallel 1/R = 1/R1 + 1/R2

5) True. Because Vba = Va - Vb and Va > Vb

6) True. Because Q = CV. Directly Proportional relation

7) True. He was aware of the existence of the lodestone, and was the first to be connected to knowledge of this in history.(magnetism)

8) False. Magnetic north corresponds to geographic south. So Bar magnet's north pole attracts towards Earth's South pole

9) True

10) False. (example cyclotron)

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