choose the best answer q6 A planar capacitor is charged with a total charge Q and the battery is removed. A plate of mat
Posted: Wed Jul 06, 2022 11:36 am
choose the best answer
q6A planar capacitor is charged with a total charge Q and the batteryis removed. A plate of material with a dielectric constant κ isinserted between the armatures. The energy stored in the capacitorwill:(Q is the same)to increaseb) decreasec) stay the sameq9We consider a dipole molecule in a region of space where there is aNON-uniform electrostatic field (electrostatic field exerted on thepositive charge of the dipole is different from that exerted on thenegative charge). The molecule will undergo:
a) rotation.b) a translation.c) a rotation and a translation.d) no movement.q11A heating element is immersed in water in a beaker. It is connectedto a fixed voltage source of 12 V. You want to increase theelectrical power of the heater.
What should be done ?
a) Lengthen the wire of the heating body (increase the length ofthe wire)
b) Shorten the wire of the heating body (reduce the length of thewire)
c) None of the above.
q6A planar capacitor is charged with a total charge Q and the batteryis removed. A plate of material with a dielectric constant κ isinserted between the armatures. The energy stored in the capacitorwill:(Q is the same)to increaseb) decreasec) stay the sameq9We consider a dipole molecule in a region of space where there is aNON-uniform electrostatic field (electrostatic field exerted on thepositive charge of the dipole is different from that exerted on thenegative charge). The molecule will undergo:
a) rotation.b) a translation.c) a rotation and a translation.d) no movement.q11A heating element is immersed in water in a beaker. It is connectedto a fixed voltage source of 12 V. You want to increase theelectrical power of the heater.
What should be done ?
a) Lengthen the wire of the heating body (increase the length ofthe wire)
b) Shorten the wire of the heating body (reduce the length of thewire)
c) None of the above.