Unity Script Reference:

AddTorque(torque: Vector3, mode: ForceMode = ForceMode.Force): void;

void AddTorque(Vector3 torque, ForceMode mode = ForceMode.Force);

def AddTorque(torque as Vector3, mode as ForceMode = ForceMode.Force) as void

Description

Adds a torque to the rigidbody.

As a result the rigidbody will start spinning around the torque axis.

	// Spins the rigidbody around the global y-axis	function FixedUpdate () {
		rigidbody.AddTorque (Vector3.up * 10);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void FixedUpdate() {
        rigidbody.AddTorque(Vector3.up * 10);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def FixedUpdate() as void:
		rigidbody.AddTorque((Vector3.up * 10))

If you want to apply a force over several frames you should apply it inside FixedUpdate instead of Update.

AddTorque(x: float, y: float, z: float, mode: ForceMode = ForceMode.Force): void;

void AddTorque(float x, float y, float z, ForceMode mode = ForceMode.Force);

def AddTorque(x as float, y as float, z as float, mode as ForceMode = ForceMode.Force) as void

Description

Adds a torque to the rigidbody.

As a result the rigidbody will start spinning around the torque axis.

	// Spins the rigidbody around the global y-axis
	function FixedUpdate () {
		rigidbody.AddTorque (0, 10, 0);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void FixedUpdate() {
        rigidbody.AddTorque(0, 10, 0);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def FixedUpdate() as void:
		rigidbody.AddTorque(0, 10, 0)