Question

A parallel-plate capacitor is formed from two 3.0 cmcm ××3.0 cmcm electrodes spaced 2.0 mmmm apart. The electric field strength inside the capacitor is 1.0×106N/C1.0×106N/C.

What is the charge (in nCnC) on the positive electrode?

Express your answer in nanocoulombs.

Part B

What is the charge (in nCnC) on the negative electrode?

Express your answer in nanocoulombs.

Answer #1

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A parallel-plate capacitor is formed from two 9.0 cm ×9.0 cm
electrodes spaced 2.2 mm apart. The electric field strength inside
the capacitor is 1.0×10^6N/C
1. What is the charge (in nC) on the positive electrode?
2. What is the charge (in nC) on the negative electrode

Two 2.0 cmcm ××2.0 cmcm square aluminum electrodes, spaced 0.60
mmmm apart, are connected to a 200 VV battery.
Part A
What is the capacitance?
Express your answer in picofarads.
Part B
What is the charge on the positive electrode?
Express your answer in coulombs.

Two 2.5-cmcm-diameter-disks spaced 1.5 mmmm apart form a
parallel-plate capacitor. The electric field between the disks is
4.7×105 V/mV/m .
What is the voltage across the capacitor?
How much charge is on each disk?
An electron is launched from the negative plate. It strikes the
positive plate at a speed of 2.0×107 m/sm/s . What was
the electron's speed as it left the negative plate?

An electric dipole is formed from ±± 2.0 nCnC point charges
spaced 1.0 mmmm apart. The dipole is centered at the origin,
oriented along the yy-axis.
1) What is the electric field strength at point (x,y)(x,y) = ((
25 mmmm ,,0cm)cm)?
Express your answer using two significant figures.
2) What is the electric field strength at point (x,y)(x,y) =
((0cm,cm, 25 mmmm ))?
Express your answer using two significant figures.

Two 15-cm-diameter electrodes 0.42 cm apart form a
parallel-plate capacitor. The electrodes are attached by metal
wires to the terminals of a 15 V battery. After a long time, the
capacitor is disconnected from the battery but is not
discharged.
Part D/E/F What are the charge on each electrode, the electric
field strength inside the capacitor, and the potential difference
between the electrodes after insulating handles are used to pull
the electrodes away from each other until they are 0.84...

Two 15-cm-diameter electrodes 0.42 cm apart form a
parallel-plate capacitor. The electrodes are attached by metal
wires to the terminals of a 14 V battery. After a long time, the
capacitor is disconnected from the battery but is not
discharged.
A) What are the charge on each electrode, the electric field
strength inside the capacitor, and the potential difference between
the electrodes after insulating handles are used to pull the
electrodes away from each other until they are 0.84 cm...

Two 13-cm-diameter electrodes 0.46 cm apart form a
parallel-plate capacitor. The electrodes are attached by metal
wires to the terminals of a 13 V battery.
DEF What are the charge on each electrode, the electric field
strength inside the capacitor, and the potential difference between
the electrodes after insulating handles are used to pull the
electrodes away from each other until they are 0.92 cm apart? The
electrodes remain connected to the battery during this process.
What is the Q=,...

Two 10.0-cm-diameter electrodes 0.59 cm apart form a
parallel-plate capacitor. The electrodes are attached by metal
wires to the terminals of a 14 Vbattery.
Part A
What is the charge on each electrode while the capacitor is
attached to the battery?
Enter your answers numerically separated by a comma.
q1, q2 =
C
Part B
What is the electric field strength inside the capacitor while
the capacitor is attached to the battery?
Express your answer with the appropriate units.
E...

Two 2.3-cm-diameter-disks spaced 2.0 mm apart form a
parallel-plate capacitor. The electric field between the disks is
4.6×105 V/m .
Part A
What is the voltage across the capacitor?
Part B
How much charge is on each disk?
Part C
An electron is launched from the negative plate. It strikes the
positive plate at a speed of 2.3×107 m/s . What was the
electron's speed as it left the negative plate?

A parallel-plate capacitor has 2.0 cm × 2.0 cm electrodes with
surface charge densities ± 1.0 × 10^?6 C/m2 . A proton traveling
parallel to the electrodes at 1.0 × 10^6 m/s enters the center of
the gap between them. By what distance has the proton been
deflected sideways when it reaches the far edge of the capacitor?
Assume the field is uniform inside the capacitor and zero outside
the capacitor. [?y = 2.2 mm]

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