مساعدددددةةةة ضروري!

السلام عليكم ورحمه الله وبركاته،،
محتاجه اجوبه صحيحه لهذي الاسئلة لو سمحتوا..

1-If a current of 2.0 A is flowing from point a to point b, the potential difference between the points is
A) 6 V B) 8 V
C) 14 V D) 20 V E) 22 V

2-A wire of length L and resistance R is cut into 4 equal pieces. If the 4 pieces are now twisted together to make a wire of length L/4, what is the new resistance of the shorter wire combination?
A) R/16 B) R/4 C) R D) 4R E) 16R

3-The circuit in the figure contains a battery and a resistor in series. Which of the following statements is not true?
A) The current in the circuit is 2 A.
B) Point α is at a higher potential than point β, and Vαβ = 5 V.
C) The battery is supplying energy to the circuit at the rate of 6 W.
D) The rate of heating in the external resistor is 10 W.

4-In the circuit element shown, the current through the 6-Ω resistor is approximately
A) 1.0 A B) 2.0 A
C) 0.40 A D) 0.67 A
E) 1.3 A