Question

Circuit diagram with nodes a, b, c, d. Top branch from a to b: 16 ? resistor, then 2 V battery (series). Right branch from b down to c: 4 ? resistor, then 4 V battery (series) to c. Bottom branch from c to d: resistor R, and a 12 V battery in series with the branch to d. Left branch from d up to a: 6 V battery. Consider the circuit shown above. Determine the value of resistance R if the current in the circuit is 4 A. What is the potential at d if the potential at a is zero?

          Circuit diagram with nodes a, b, c, d.
Top branch from a to b: 16 ? resistor, then 2 V battery (series).
Right branch from b down to c: 4 ? resistor, then 4 V battery (series) to c.
Bottom branch from c to d: resistor R, and a 12 V battery in series with the branch to d.
Left branch from d up to a: 6 V battery.
Consider the circuit shown above. Determine the value of resistance R if the current in the circuit is 4 A. What is the potential at d if the potential at a is zero?

Circuit diagram with nodes a, b, c, d.
Top branch from a to b: 16 ? resistor, then 2 V battery (series).
Right branch from b down to c: 4 ? resistor, then 4 V battery (series) to c.
Bottom branch from c to d: resistor R, and a 12 V battery in series with the branch to d.
Left branch from d up to a: 6 V battery.
Consider the circuit shown above. Determine the value of resistance R if the current in the circuit is 4 A. What is the potential at d if the potential at a is zero?

Added by Vincent D.

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