Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
When 720 is the t c (°c) what is the   h ci (ka/m)?

### Inputs:
table_name: table, columns: ['Magnet', 'B r (T)', 'H ci (kA/m)', '(BH) max (kJ/m 3 )', 'T c (°C)']

### Response:
SELECT H ci (kA/m) FROM table WHERE T c (°C) = 720