Choices: equal to, less than, greater than, increase, decrease, not change. • QR

Question

Choices: equal to, less than, greater than, increase, decrease, not change.

• QR is ... QT.

• The energy stored in capacitor TU is ... the energy stored in capacitor RS.

• The voltage across capacitor RS is ... that across capacitor TU.

• If the plate separation for capacitor TU decreases, the charge on QR will ... .

• The electric field between plates T and U is ... that between plates R and S.

• If the plate separation for capacitor RS decreases, the energy stored in TU will ... .

• QT + QU is ... zero.

Explanation / Answer

• QR is ... QT.
Since capacitors are connected in series,charge will be same on both capacitors.
Answer: equal to

• The energy stored in capacitor TU is ... the energy stored in capacitor RS.
C= ebsoleneo*A/d
if d is small, capacitance will be large.
CTU< CRS

energy, U = 0.5*Q^2/C
Sice capacitors are connected in series,charge will be same across both, Hence energy will be more for capcitor whose capacitance is less.
UTU>URS

Answer: greater than

• The voltage across capacitor RS is ... that across capacitor TU.
V = Q/C
since Q is same,greater the C, lesser the V
Answer: less than

• If the plate separation for capacitor TU decreases, the charge on QR will ... .
If the separation decreases,capacitance increases. Charge supplied by battery increases.
since Q= C*V
So, charge on QR will increase
Answer: increase

I am allowed to answer only 4 parts at a time.Please ask other as different question

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