Free Printable Star Delta Transformation

1.

Which formula is correct for converting Y (Star) to Δ (Delta) in a resistive network?

a)

b)

c)

d)

2.

Which formula is correct for converting $\Delta$ (Delta) to Y (Star) in a resistive network?

a)

b)

c)

d)

3.

Three resistors (each is $1\ \Omega$ ) form a Y (star) circuit; Find the equivalent resistance between A and B.

a)

$1\Omega$

b)

$2\Omega$

c)

$3\Omega$

d)

$4\Omega$

4.

Three resistors (each is $1\Omega$ ) form a $\Delta$ (delta) circuit; find the equivalent resistance between terminals A, B.

a)

$0.33\ \Omega$

b)

$0.66\ \Omega$

c)

$1\Omega$

d)

$2\Omega$

5.

If the following circuit is transformed from Y (star) to $\Delta$ (delta), find the value of the resistance "R" ?

a)

$1\Omega$

b)

$2\Omega$

c)

$3\Omega$

d)

$4\Omega$

6.

If the following circuit is transformed from $\Delta$ (delta) to Y (star), find "R" ?

a)

$0.33\ \Omega$

b)

$0.66\ \Omega$

c)

$1\ \Omega$

d)

$2\ \Omega$

7.

Given a $\Delta$ network with resistances R1=9 Ω , R2=6 Ω , and R3=3 Ω , what is the value of the equivalent star resistor RA connected to the node between R1 and R2?

a)

$1\Omega$

b)

$2\Omega$

c)

$3\Omega$

d)

$4\Omega$

8.

What is the equivalent resistance between A, B?

a)

$5\ \Omega$

b)

$10\ \Omega$

c)

$15\ \Omega$

d)

$20\ \Omega$

9.

What is the equivalent resistance between A, B?

a)

$4\ \Omega$

b)

$12\ \Omega$

c)

$9.65\ \Omega$

d)

$5.45\ \Omega$

10.

What is the equivalent resistance between A, B?

a)

$0.33\ \Omega$

b)

$0.66\ \Omega$

c)

$0.83\ \Omega$

d)

$1.66\ \Omega$

Star Delta Transformation

Total questions: 10

Worksheet time: 10mins

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