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| The potential is constant throughout a given region of space. What else is true? |
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| Electric field always moves from ___ to ___. |
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| In a region where there is an electric field, the electric forces (due to the electric field) do 5.46 times 10-19 J of work on an electron as it moves from point X to point Y. Which point has a higher potential? |
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| Y --> because work is positive |
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| Why would an electrician working on a circuit keep one hand behind his back? |
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| to avoid becoming part of the circuit |
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| A charged particle enters a mass spec perpendicular to the magnetic field. It's path becomes a ____. |
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| When charging, Initially, capacitors behave like ___. After a long itme, they behave like ___. |
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| When discharging, capacitors initially behave like ____. After a long time, the behave like ____. |
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| The sum of currents going into a junction equals the sume of the currents going out. |
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| when any closed loop is traversed completely in a circuit, the algebraic sum of the changes in potential equals zero. |
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| Current is always directed from lower/higher to lower/higher potential. |
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| ____ is defined as charges in motion. |
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| ___ is a scalar, signed quantity whose sign corresponds to the direction of motion of net positive charges by convention. |
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| A break at any point in a circuit causes what to happen to current? |
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| Batteries produce fixed ___. |
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| 2 resistors wired in series. If there is a current in the first one, then the current in the second one is ___ |
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| the same as the first one |
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| A ___ is a charge pump that can maintain a potential difference across two terminals by doing work on the charges. |
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| Collisions of electrons in matter cause energy transfer to matter which ends up as heat. This process is called ___. |
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| What is meant by a 60 watt bulb? |
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Definition
| 60 watts of power are dissipated. P=60 |
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| Which has larger resistance, 40W or 60W bulb? |
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| A ___ is a device capable of storing electric charge and thus electric potential energy. |
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| Store up charge and later release it in a controlled way |
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| Of two conductors... each holds equal and opposite charge |
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| In a parallel plate capacitor, when Q is fixed, ___ is constant. |
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| ___ is the ability to store Q for little V. |
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| Dialectrics have ____, which can align in a field. |
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| A parallel plate capacitor has equal and opposite Q on the plates. if the plates are pulled further apart, the C increases/decreases/remains the same |
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| A parallel plate capacitor has equal and opposite charge on the plates. If the plates are pulled further apart, the stored energy increases/decreases/remains the same. |
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| A change in electric potential energy indicates that ___ is done. |
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| Field is parallel/perpendicular to equipotential surface. |
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| Net number of ____ is proportional to net charges enclosed in the surface. |
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